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Vulnerability Details :

CVE-2026-41523

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-22 Jun, 2026 | 22:18
Updated At-30 Jun, 2026 | 12:08
Rejected At-
Credits

vLLM: Security Check Bypass via assert Statement in Activation Function Loading Allows Arbitrary Code Execution

vLLM is an inference and serving engine for large language models (LLMs). Prior to 0.22.0, an assert-based security check in vLLM's activation function loading allows any unauthenticated attacker to achieve arbitrary code execution on the server by publishing a malicious HuggingFace model, when vLLM runs in Python optimized mode (python -O or PYTHONOPTIMIZE=1). This vulnerability is fixed in 0.22.0.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:22 Jun, 2026 | 22:18
Updated At:30 Jun, 2026 | 12:08
Rejected At:
▼CVE Numbering Authority (CNA)
vLLM: Security Check Bypass via assert Statement in Activation Function Loading Allows Arbitrary Code Execution

vLLM is an inference and serving engine for large language models (LLMs). Prior to 0.22.0, an assert-based security check in vLLM's activation function loading allows any unauthenticated attacker to achieve arbitrary code execution on the server by publishing a malicious HuggingFace model, when vLLM runs in Python optimized mode (python -O or PYTHONOPTIMIZE=1). This vulnerability is fixed in 0.22.0.

Affected Products
Vendor
vllm-project
Product
vllm
Versions
Affected
  • < 0.22.0
Problem Types
TypeCWE IDDescription
CWECWE-94CWE-94: Improper Control of Generation of Code ('Code Injection')
CWECWE-617CWE-617: Reachable Assertion
Type: CWE
CWE ID: CWE-94
Description: CWE-94: Improper Control of Generation of Code ('Code Injection')
Type: CWE
CWE ID: CWE-617
Description: CWE-617: Reachable Assertion
Metrics
VersionBase scoreBase severityVector
3.17.5HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/vllm-project/vllm/security/advisories/GHSA-q8gq-377p-jq3r
x_refsource_CONFIRM
https://github.com/vllm-project/vllm/commit/b3c7ffcab82c2439726f8cb213800f6f38c023d3
x_refsource_MISC
https://huntr.com/bounties/dcb05b04-e625-41e7-adbc-bbae0cc2d64c
x_refsource_MISC
Hyperlink: https://github.com/vllm-project/vllm/security/advisories/GHSA-q8gq-377p-jq3r
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/vllm-project/vllm/commit/b3c7ffcab82c2439726f8cb213800f6f38c023d3
Resource:
x_refsource_MISC
Hyperlink: https://huntr.com/bounties/dcb05b04-e625-41e7-adbc-bbae0cc2d64c
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
1. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
2. vllm: vLLM: Arbitrary code execution via malicious HuggingFace model

A flaw was found in vLLM, an inference and serving engine for large language models (LLMs). An unauthenticated attacker can exploit an assert-based security check during activation function loading. By publishing a malicious HuggingFace model, an attacker can achieve arbitrary code execution on the server when vLLM runs in Python optimized mode.

Affected Products
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat AI Inference Server
CPEs
  • cpe:/a:redhat:ai_inference_server:3
Default Status
affected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux AI (RHEL AI) 3
CPEs
  • cpe:/a:redhat:enterprise_linux_ai:3
Default Status
affected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat OpenShift AI (RHOAI)
CPEs
  • cpe:/a:redhat:openshift_ai
Default Status
affected
Problem Types
TypeCWE IDDescription
CWECWE-617Reachable Assertion
Type: CWE
CWE ID: CWE-617
Description: Reachable Assertion
Metrics
VersionBase scoreBase severityVector
3.17.5HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Metrics Other Info
Red Hat severity rating
value:
Important
namespace:
https://access.redhat.com/security/updates/classification/
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Avoid running vLLM with python -O or PYTHONOPTIMIZE=1 until updated packages are available. Only load models from trusted sources. Restrict who can deploy or update models on inference endpoints. Apply network access controls and authentication in front of vLLM APIs.

Exploits

Credits

Timeline
EventDate
Reported to Red Hat.2026-06-22 23:01:00
Made public.2026-06-22 22:18:14
Event: Reported to Red Hat.
Date: 2026-06-22 23:01:00
Event: Made public.
Date: 2026-06-22 22:18:14
Replaced By

Rejected Reason

References
HyperlinkResource
https://access.redhat.com/security/cve/CVE-2026-41523
vdb-entry
x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2491582
issue-tracking
x_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41523.json
x_sadp-csaf-vex
Hyperlink: https://access.redhat.com/security/cve/CVE-2026-41523
Resource:
vdb-entry
x_refsource_REDHAT
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2491582
Resource:
issue-tracking
x_refsource_REDHAT
Hyperlink: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41523.json
Resource:
x_sadp-csaf-vex
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:22 Jun, 2026 | 23:16
Updated At:30 Jun, 2026 | 03:19

vLLM is an inference and serving engine for large language models (LLMs). Prior to 0.22.0, an assert-based security check in vLLM's activation function loading allows any unauthenticated attacker to achieve arbitrary code execution on the server by publishing a malicious HuggingFace model, when vLLM runs in Python optimized mode (python -O or PYTHONOPTIMIZE=1). This vulnerability is fixed in 0.22.0.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.17.5HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Secondary3.17.5HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
N/A
Type: Secondary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches

vllm
vllm
>>vllm>>Versions before 0.22.0(exclusive)
cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-94Primarysecurity-advisories@github.com
CWE-617Primarysecurity-advisories@github.com
CWE-617Secondary0b0ca135-0b70-47e7-9f44-1890c2a1c46c
CWE ID: CWE-94
Type: Primary
Source: security-advisories@github.com
CWE ID: CWE-617
Type: Primary
Source: security-advisories@github.com
CWE ID: CWE-617
Type: Secondary
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/vllm-project/vllm/commit/b3c7ffcab82c2439726f8cb213800f6f38c023d3security-advisories@github.com
Patch
https://github.com/vllm-project/vllm/security/advisories/GHSA-q8gq-377p-jq3rsecurity-advisories@github.com
Exploit
Third Party Advisory
https://huntr.com/bounties/dcb05b04-e625-41e7-adbc-bbae0cc2d64csecurity-advisories@github.com
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-415230b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://bugzilla.redhat.com/show_bug.cgi?id=24915820b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41523.json0b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
Hyperlink: https://github.com/vllm-project/vllm/commit/b3c7ffcab82c2439726f8cb213800f6f38c023d3
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/vllm-project/vllm/security/advisories/GHSA-q8gq-377p-jq3r
Source: security-advisories@github.com
Resource:
Exploit
Third Party Advisory
Hyperlink: https://huntr.com/bounties/dcb05b04-e625-41e7-adbc-bbae0cc2d64c
Source: security-advisories@github.com
Resource:
Third Party Advisory
Hyperlink: https://access.redhat.com/security/cve/CVE-2026-41523
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2491582
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41523.json
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A

Change History

0
Information is not available yet

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Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-416
Use After Free
CWE ID-CWE-825
Expired Pointer Dereference
CVE-2026-6753
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.3||HIGH
EPSS-0.31% / 22.38%
||
7 Day CHG+0.04%
Published-21 Apr, 2026 | 12:40
Updated-30 Jun, 2026 | 12:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Incorrect boundary conditions in the WebRTC component

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-787
Out-of-bounds Write
CVE-2026-6752
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.3||HIGH
EPSS-0.31% / 22.38%
||
7 Day CHG+0.03%
Published-21 Apr, 2026 | 12:40
Updated-30 Jun, 2026 | 12:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Incorrect boundary conditions in the WebRTC component

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-131
Incorrect Calculation of Buffer Size
CVE-2026-6784
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.30% / 21.86%
||
7 Day CHG+0.02%
Published-21 Apr, 2026 | 12:41
Updated-30 Jun, 2026 | 03:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Memory safety bugs fixed in Firefox 150 and Thunderbird 150

Memory safety bugs present in Firefox 149 and Thunderbird 149. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6
CWE ID-CWE-125
Out-of-bounds Read
CWE ID-CWE-416
Use After Free
CWE ID-CWE-787
Out-of-bounds Write
CVE-2026-6751
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.3||HIGH
EPSS-0.31% / 22.41%
||
7 Day CHG+0.04%
Published-21 Apr, 2026 | 12:40
Updated-30 Jun, 2026 | 12:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Uninitialized memory in the Audio/Video: Web Codecs component

Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-457
Use of Uninitialized Variable
CWE ID-CWE-824
Access of Uninitialized Pointer
CVE-2026-5735
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-8.1||HIGH
EPSS-0.26% / 17.00%
||
7 Day CHG-0.05%
Published-07 Apr, 2026 | 12:43
Updated-30 Jun, 2026 | 12:11
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Memory safety bugs fixed in Firefox 149.0.2 and Thunderbird 149.0.2

Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6
CWE ID-CWE-125
Out-of-bounds Read
CWE ID-CWE-787
Out-of-bounds Write
CVE-2026-8946
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.56% / 42.45%
||
7 Day CHG+0.11%
Published-19 May, 2026 | 12:29
Updated-30 Jun, 2026 | 03:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Incorrect boundary conditions in the Audio/Video: Web Codecs component

Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream E4S (v.9.4)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)Red Hat Enterprise Linux AppStream AUS (v.8.4)
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-787
Out-of-bounds Write
CVE-2026-4721
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.42% / 34.11%
||
7 Day CHG-0.01%
Published-24 Mar, 2026 | 12:30
Updated-30 Jun, 2026 | 03:20
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149

Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream AUS (v. 8.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-825
Expired Pointer Dereference
CVE-2026-8975
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-0.43% / 34.45%
||
7 Day CHG+0.09%
Published-19 May, 2026 | 12:30
Updated-30 Jun, 2026 | 03:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151

Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream E4S (v.9.4)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)Red Hat Enterprise Linux AppStream AUS (v.8.4)
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-787
Out-of-bounds Write
CVE-2026-8388
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-6.5||MEDIUM
EPSS-0.24% / 15.44%
||
7 Day CHG+0.06%
Published-12 May, 2026 | 12:36
Updated-30 Jun, 2026 | 03:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Incorrect boundary conditions in the JavaScript Engine: JIT component

Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream E4S (v.9.4)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)Red Hat Enterprise Linux AppStream AUS (v.8.4)
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-787
Out-of-bounds Write
CVE-2026-7320
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.32% / 24.19%
||
7 Day CHG+0.05%
Published-28 Apr, 2026 | 13:49
Updated-30 Jun, 2026 | 12:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Information disclosure due to incorrect boundary conditions in the Audio/Video component

Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream E4S (v.9.4)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-125
Out-of-bounds Read
CVE-2026-4684
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.35% / 27.23%
||
7 Day CHG+0.08%
Published-24 Mar, 2026 | 12:30
Updated-30 Jun, 2026 | 03:20
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Race condition, use-after-free in the Graphics: WebRender component

Race condition, use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream AUS (v. 8.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE ID-CWE-364
Signal Handler Race Condition
CWE ID-CWE-416
Use After Free
CVE-2026-4696
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.48% / 38.15%
||
7 Day CHG-0.01%
Published-24 Mar, 2026 | 12:30
Updated-01 Jul, 2026 | 12:05
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the Layout: Text and Fonts component

Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxThunderbirdFirefoxRed Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream E4S (v.9.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream AUS (v. 8.2)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux AppStream AUS (v.8.4)
CWE ID-CWE-416
Use After Free
CWE ID-CWE-825
Expired Pointer Dereference
CVE-2026-4691
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.48% / 38.15%
||
7 Day CHG-0.01%
Published-24 Mar, 2026 | 12:30
Updated-30 Jun, 2026 | 12:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the CSS Parsing and Computation component

Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream AUS (v. 8.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-416
Use After Free
CWE ID-CWE-825
Expired Pointer Dereference
CVE-2026-4688
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.6||CRITICAL
EPSS-0.53% / 40.93%
||
7 Day CHG+0.12%
Published-24 Mar, 2026 | 12:30
Updated-30 Jun, 2026 | 03:20
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Sandbox escape due to use-after-free in the Disability Access APIs component

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream AUS (v. 8.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-416
Use After Free
CWE ID-CWE-825
Expired Pointer Dereference
CVE-2026-8090
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.3||HIGH
EPSS-0.32% / 23.47%
||
7 Day CHG+0.03%
Published-07 May, 2026 | 12:45
Updated-30 Jun, 2026 | 12:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the DOM: Networking component

Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream E4S (v.9.4)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux 9Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux 8Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)Red Hat Enterprise Linux AppStream AUS (v.8.4)
CWE ID-CWE-416
Use After Free
CWE ID-CWE-825
Expired Pointer Dereference
CVE-2026-4700
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.46% / 36.57%
||
7 Day CHG+0.01%
Published-24 Mar, 2026 | 12:30
Updated-30 Jun, 2026 | 03:20
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Mitigation bypass in the Networking: HTTP component

Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream AUS (v. 8.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-288
Authentication Bypass Using an Alternate Path or Channel
CWE ID-CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CVE-2026-6746
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.59% / 43.72%
||
7 Day CHG+0.01%
Published-21 Apr, 2026 | 12:40
Updated-01 Jul, 2026 | 12:05
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the DOM: Core & HTML component

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream E4S (v.9.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux AppStream AUS (v.8.4)
CWE ID-CWE-416
Use After Free
CWE ID-CWE-825
Expired Pointer Dereference
CVE-2026-4698
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-0.76% / 50.59%
||
7 Day CHG+0.15%
Published-24 Mar, 2026 | 12:30
Updated-30 Jun, 2026 | 03:20
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
JIT miscompilation in the JavaScript Engine: JIT component

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream AUS (v. 8.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-733
Compiler Optimization Removal or Modification of Security-critical Code
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2026-4692
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.6||CRITICAL
EPSS-0.49% / 38.38%
||
7 Day CHG+0.10%
Published-24 Mar, 2026 | 12:30
Updated-30 Jun, 2026 | 03:20
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Sandbox escape in the Responsive Design Mode component

Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream AUS (v. 8.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-653
Improper Isolation or Compartmentalization
CVE-2026-6750
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-0.48% / 38.10%
||
7 Day CHG+0.10%
Published-21 Apr, 2026 | 12:40
Updated-30 Jun, 2026 | 12:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Privilege escalation in the Graphics: WebRender component

Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-266
Incorrect Privilege Assignment
CWE ID-CWE-269
Improper Privilege Management
CVE-2026-6748
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.40% / 31.83%
||
7 Day CHG+0.01%
Published-21 Apr, 2026 | 12:40
Updated-30 Jun, 2026 | 12:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Uninitialized memory in the Audio/Video: Web Codecs component

Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-457
Use of Uninitialized Variable
CWE ID-CWE-824
Access of Uninitialized Pointer
CVE-2026-6749
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.40% / 32.29%
||
7 Day CHG+0.06%
Published-21 Apr, 2026 | 12:40
Updated-01 Jul, 2026 | 12:05
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Information disclosure due to uninitialized memory in the Graphics: Canvas2D component

Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream E4S (v.9.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux AppStream AUS (v.8.4)
CWE ID-CWE-824
Access of Uninitialized Pointer
CWE ID-CWE-908
Use of Uninitialized Resource
CVE-2026-4720
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.42% / 34.11%
||
7 Day CHG+0.01%
Published-24 Mar, 2026 | 12:30
Updated-30 Jun, 2026 | 03:20
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149

Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream AUS (v. 8.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2026-4687
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.6||CRITICAL
EPSS-0.54% / 41.35%
||
7 Day CHG+0.11%
Published-24 Mar, 2026 | 12:30
Updated-30 Jun, 2026 | 03:20
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Sandbox escape due to incorrect boundary conditions in the Telemetry component

Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream AUS (v. 8.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-501
Trust Boundary Violation
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2026-6747
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.40% / 31.98%
||
7 Day CHG+0.03%
Published-21 Apr, 2026 | 12:40
Updated-01 Jul, 2026 | 12:05
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the WebRTC component

Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream E4S (v.9.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux AppStream AUS (v.8.4)
CWE ID-CWE-416
Use After Free
CWE ID-CWE-825
Expired Pointer Dereference
CVE-2026-6786
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.50% / 39.09%
||
7 Day CHG+0.12%
Published-21 Apr, 2026 | 12:41
Updated-30 Jun, 2026 | 12:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150

Memory safety bugs present in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-125
Out-of-bounds Read
CWE ID-CWE-416
Use After Free
CWE ID-CWE-787
Out-of-bounds Write
CVE-2026-8947
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.3||HIGH
EPSS-0.41% / 33.20%
||
7 Day CHG+0.04%
Published-19 May, 2026 | 12:29
Updated-30 Jun, 2026 | 03:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the DOM: Bindings (WebIDL) component

Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream E4S (v.9.4)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)Red Hat Enterprise Linux AppStream AUS (v.8.4)
CWE ID-CWE-416
Use After Free
CWE ID-CWE-825
Expired Pointer Dereference
CVE-2026-44017
Matching Score-8
Assigner-GitHub, Inc.
ShareView Details
Matching Score-8
Assigner-GitHub, Inc.
CVSS Score-7.5||HIGH
EPSS-0.48% / 37.85%
||
7 Day CHG+0.07%
Published-24 Jun, 2026 | 17:48
Updated-30 Jun, 2026 | 12:08
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Docling: Unsafe Zip Extraction in EasyOCR Model Download

Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. Prior to 2.91.0, the EasyOCR model download functionality extracted ZIP archives without validating member paths, enabling Zip Slip attacks. If an attacker could compromise the model download source (via supply chain attack, DNS spoofing, or MITM), they could write arbitrary files to any location writable by the process, potentially achieving remote code execution by overwriting Python files or system binaries, persistent backdoors by modifying startup scripts or SSH keys, and data corruption or system compromise. This vulnerability is fixed in 2.91.0.

Action-Not Available
Vendor-doclingdocling-projectRed Hat, Inc.
Product-doclingdoclingRed Hat OpenShift AI (RHOAI)
CWE ID-CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE-2026-44422
Matching Score-8
Assigner-GitHub, Inc.
ShareView Details
Matching Score-8
Assigner-GitHub, Inc.
CVSS Score-7.5||HIGH
EPSS-0.38% / 30.35%
||
7 Day CHG+0.06%
Published-29 May, 2026 | 19:41
Updated-30 Jun, 2026 | 12:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
FreeRDP RDPEAR NDR ref-id aliasing causes client-side UAF/double-free and type confusion

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, FreeRDP's RDPEAR NDR parser accepts one non-null NDR pointer ref-id for multiple logical pointer fields without tracking the pointed object's expected NDR type or ownership. When the same ref-id is reused across two pointer fields, the parser assigns the same heap object to both output fields. The generic destructor later walks each field independently and destroys/frees both pointers. This causes a malicious-server-triggerable heap use-after-free / double-free in the FreeRDP client's RDPEAR authentication-redirection path. This vulnerability is fixed in 3.26.0.

Action-Not Available
Vendor-Red Hat, Inc.FreeRDP
Product-freerdpFreeRDPRed Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6
CWE ID-CWE-415
Double Free
CWE ID-CWE-416
Use After Free
CWE ID-CWE-825
Expired Pointer Dereference
CVE-2026-42027
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-9.8||CRITICAL
EPSS-0.69% / 48.35%
||
7 Day CHG-0.00%
Published-04 May, 2026 | 16:43
Updated-30 Jun, 2026 | 09:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache OpenNLP: Arbitrary Class Instantiation via Model Manifest in ExtensionLoader

Arbitrary Class Instantiation via Model Manifest in Apache OpenNLP ExtensionLoader Versions Affected: before 1.9.5, before 2.5.9, before 3.0.0-M3 Description:  The ExtensionLoader.instantiateExtension(Class, String) method loads a class by its fully-qualified name via Class.forName() and invokes its no-arg constructor, with the class name sourced from the manifest.properties entry of a model archive. The existing isAssignableFrom check correctly rejects classes that are not subtypes of the expected extension interface (BaseToolFactory for factory=, ArtifactSerializer for serializer-class-*), but the check runs after Class.forName() has already loaded and initialized the named class. Class.forName() with default initialization semantics executes the target class's static initializer before returning, so an attacker who can supply a crafted model archive can cause the static initializer of any class on the classpath to run during model loading, regardless of whether that class passes the subsequent type check. Exploitation requires a class with attacker-useful side effects in its static initializer (for example, JNDI lookup, outbound network I/O, or filesystem access) to be present on the classpath, so this is not a drop-in remote code execution; however, the attack surface grows as third-party model distribution becomes more common (community model repositories, Hugging Face-style sharing), where users routinely load model files from origins they do not control. A secondary, narrower vector affects deployments that ship legitimate BaseToolFactory or ArtifactSerializer subclasses with side-effecting no-arg constructors: a malicious manifest can name such a class and force its constructor to run during model load. Mitigation:  * 2.x users should upgrade to 2.5.9. * 3.x users should upgrade to 3.0.0-M3. Note: The fix introduces a package-prefix allowlist that is consulted before Class.forName() is invoked, so the static initializer of a disallowed class is never executed. Classes under the opennlp. prefix remain permitted by default. Deployments that load models referencing factories or serializers outside opennlp.* must opt those packages in, either programmatically via ExtensionLoader.registerAllowedPackage(String) before the first model load, or by setting the OPENNLP_EXT_ALLOWED_PACKAGES system property to a comma-separated list of allowed package prefixes. Users who cannot upgrade immediately should ensure that all model files are sourced from trusted origins and should audit their classpath for classes with side-effecting static initializers or constructors, particularly any that perform JNDI lookups, network requests, or filesystem operations during class initialization.

Action-Not Available
Vendor-The Apache Software FoundationRed Hat, Inc.
Product-opennlpApache OpenNLPRed Hat OpenShift AI (RHOAI)Red Hat Data Grid 8Red Hat build of Apache Camel for Spring Boot 4Red Hat Fuse 7Red Hat JBoss Enterprise Application Platform 8Red Hat JBoss Enterprise Application Platform Expansion Pack
CWE ID-CWE-470
Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
CWE ID-CWE-502
Deserialization of Untrusted Data
CVE-2026-4729
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.33% / 24.93%
||
7 Day CHG-0.07%
Published-24 Mar, 2026 | 12:30
Updated-30 Jun, 2026 | 03:20
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Memory safety bugs fixed in Firefox 149 and Thunderbird 149

Memory safety bugs present in Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-825
Expired Pointer Dereference
CVE-2026-4689
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-10||CRITICAL
EPSS-0.66% / 47.23%
||
7 Day CHG-0.01%
Published-24 Mar, 2026 | 12:30
Updated-30 Jun, 2026 | 03:20
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component

Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream AUS (v. 8.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-190
Integer Overflow or Wraparound
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2026-4690
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.6||CRITICAL
EPSS-0.77% / 51.20%
||
7 Day CHG+0.17%
Published-24 Mar, 2026 | 12:30
Updated-30 Jun, 2026 | 12:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component

Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxThunderbirdFirefoxRed Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux 7Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux 10Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux 6Red Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream AUS (v. 8.2)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream E4S (v.9.0)
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-190
Integer Overflow or Wraparound
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2025-24357
Matching Score-8
Assigner-GitHub, Inc.
ShareView Details
Matching Score-8
Assigner-GitHub, Inc.
CVSS Score-7.5||HIGH
EPSS-0.69% / 48.42%
||
7 Day CHG~0.00%
Published-27 Jan, 2025 | 17:38
Updated-27 Jun, 2025 | 19:30
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
vLLM allows a malicious model RCE by torch.load in hf_model_weights_iterator

vLLM is a library for LLM inference and serving. vllm/model_executor/weight_utils.py implements hf_model_weights_iterator to load the model checkpoint, which is downloaded from huggingface. It uses the torch.load function and the weights_only parameter defaults to False. When torch.load loads malicious pickle data, it will execute arbitrary code during unpickling. This vulnerability is fixed in v0.7.0.

Action-Not Available
Vendor-vllmvllm-project
Product-vllmvllm
CWE ID-CWE-502
Deserialization of Untrusted Data
CVE-2026-44209
Matching Score-8
Assigner-GitHub, Inc.
ShareView Details
Matching Score-8
Assigner-GitHub, Inc.
CVSS Score-7.5||HIGH
EPSS-0.54% / 41.38%
||
7 Day CHG+0.12%
Published-26 May, 2026 | 20:46
Updated-30 Jun, 2026 | 12:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Banks: Critical Remote Code Execution (RCE) via Jinja2 SSTI

Banks generates meaningful LLM prompts using a template language that makes sense. Prior to 2.4.2, banks uses jinja2.Environment() (unsandboxed) to render prompt templates. Applications that pass user-supplied strings as the template argument to Prompt() are vulnerable to Server-Side Template Injection (SSTI), which can lead to Remote Code Execution (RCE) on the host system. This vulnerability is fixed in 2.4.2.

Action-Not Available
Vendor-masciRed Hat, Inc.
Product-banksExploit IntelligenceOpenShift LightspeedRed Hat Ansible Automation Platform 2
CWE ID-CWE-1336
Improper Neutralization of Special Elements Used in a Template Engine
CWE ID-CWE-917
Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
CVE-2026-7324
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.3||HIGH
EPSS-0.30% / 21.68%
||
7 Day CHG-0.00%
Published-28 Apr, 2026 | 13:49
Updated-30 Jun, 2026 | 12:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Memory safety bugs fixed in Thunderbird 150.0.1

Memory safety bugs present in Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.1 and Thunderbird 150.0.1.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefoxRed Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2026-34771
Matching Score-8
Assigner-GitHub, Inc.
ShareView Details
Matching Score-8
Assigner-GitHub, Inc.
CVSS Score-7.5||HIGH
EPSS-0.29% / 20.51%
||
7 Day CHG~0.00%
Published-03 Apr, 2026 | 23:47
Updated-30 Jun, 2026 | 12:09
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Electron: Use-after-free in WebContents fullscreen, pointer-lock, and keyboard-lock permission callbacks

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, apps that register an asynchronous session.setPermissionRequestHandler() may be vulnerable to a use-after-free when handling fullscreen, pointer-lock, or keyboard-lock permission requests. If the requesting frame navigates or the window closes while the permission handler is pending, invoking the stored callback dereferences freed memory, which may lead to a crash or memory corruption. Apps that do not set a permission request handler, or whose handler responds synchronously, are not affected. This issue has been patched in versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8.

Action-Not Available
Vendor-Electron UserlandRed Hat, Inc.Electron (OpenJS Foundation)
Product-electronelectronRed Hat Build of Podman DesktopRed Hat Build of Podman Desktop - Tech Preview
CWE ID-CWE-364
Signal Handler Race Condition
CWE ID-CWE-416
Use After Free
CVE-2026-35385
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-7.5||HIGH
EPSS-0.42% / 33.70%
||
7 Day CHG+0.13%
Published-02 Apr, 2026 | 16:30
Updated-02 Jul, 2026 | 12:05
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In OpenSSH before 10.3, a file downloaded by scp may be installed setuid or setgid, an outcome contrary to some users' expectations, if the download is performed as root with -O (legacy scp protocol) and without -p (preserve mode).

Action-Not Available
Vendor-Red Hat, Inc.OpenBSD
Product-opensshOpenSSHRed Hat Enterprise Linux AppStream AUS (v.8.6)Red Hat Enterprise Linux AppStream E4S (v.9.2)Red Hat Enterprise Linux AppStream EUS (v.9.6)Red Hat Enterprise Linux AppStream (v. 10)Red Hat AI Inference Server 3.3Multicluster Engine for KubernetesRed Hat Enterprise Linux BaseOS E4S (v.9.2)OpenShift PipelinesRed Hat Enterprise Linux Server Optional (v. 7 ELS)Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)Red Hat Enterprise Linux BaseOS (v. 10)Red Hat Enterprise Linux BaseOS E4S (v.8.6)Red Hat AI Inference Server 3.2Red Hat Enterprise Linux BaseOS EUS (v.9.4)Red Hat OpenShift Container Platform 4.13Red Hat OpenShift Container Platform 4.12Red Hat Enterprise Linux BaseOS EUS (v.9.6)Red Hat Discovery 2Red Hat Enterprise Linux AppStream AUS (v.8.4)Red Hat Enterprise Linux AppStream (v. 9)Red Hat Enterprise Linux BaseOS (v. 8)Red Hat Enterprise Linux AppStream E4S (v.8.6)Red Hat Enterprise Linux AppStream TUS (v.8.6)Red Hat Enterprise Linux BaseOS TUS (v.8.8)Red Hat Enterprise Linux Server (v. 7 ELS)Red Hat Enterprise Linux AppStream EUS (v. 10.0)Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)Red Hat Enterprise Linux BaseOS (v. 9)Red Hat OpenShift Container Platform 4.18Red Hat Enterprise Linux AppStream E4S (v.8.8)Red Hat Enterprise Linux AppStream (v. 8)Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Red Hat Advanced Cluster Management for Kubernetes 2Red Hat OpenShift Container Platform 4.19Red Hat OpenShift Container Platform 4.14Red Hat Enterprise Linux BaseOS E4S (v.8.8)Red Hat Update Infrastructure 5Red Hat Enterprise Linux AppStream TUS (v.8.8)Red Hat Enterprise Linux AppStream EUS (v.9.4)Red Hat OpenShift Container Platform 4.16Red Hat Enterprise Linux BaseOS AUS (v.8.4)Red Hat Enterprise Linux BaseOS AUS (v.8.6)Red Hat Enterprise Linux BaseOS TUS (v.8.6)
CWE ID-CWE-281
Improper Preservation of Permissions
CVE-2026-33986
Matching Score-8
Assigner-GitHub, Inc.
ShareView Details
Matching Score-8
Assigner-GitHub, Inc.
CVSS Score-7.5||HIGH
EPSS-0.27% / 17.85%
||
7 Day CHG+0.05%
Published-30 Mar, 2026 | 21:43
Updated-30 Jun, 2026 | 12:09
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
FreeRDP: H.264 YUV Buffer Dimension Desync - Heap OOB Write

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, in yuv_ensure_buffer() in libfreerdp/codec/h264.c, h264->width and h264->height are updated before the reallocation loop. If any winpr_aligned_recalloc() call fails, the function returns FALSE but width/height are already inflated. This issue has been patched in version 3.24.2.

Action-Not Available
Vendor-Red Hat, Inc.FreeRDP
Product-freerdpFreeRDPRed Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6
CWE ID-CWE-122
Heap-based Buffer Overflow
CWE ID-CWE-131
Incorrect Calculation of Buffer Size
CVE-2026-8389
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-0.33% / 25.00%
||
7 Day CHG+0.03%
Published-12 May, 2026 | 12:36
Updated-30 Jun, 2026 | 03:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
JIT miscompilation in the JavaScript Engine: JIT component

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3.

Action-Not Available
Vendor-Red Hat, Inc.Mozilla Corporation
Product-firefoxFirefoxRed Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-686
Function Call With Incorrect Argument Type
CWE ID-CWE-733
Compiler Optimization Removal or Modification of Security-critical Code
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
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