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Vulnerability Details :

CVE-2026-12317

Summary
Assigner-mozilla
Assigner Org ID-f16b083a-5664-49f3-a51e-8d479e5ed7fe
Published At-16 Jun, 2026 | 11:52
Updated At-18 Jun, 2026 | 18:00
Rejected At-
Credits

Memory safety bug fixed in Firefox 152

Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

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:mozilla
Assigner Org ID:f16b083a-5664-49f3-a51e-8d479e5ed7fe
Published At:16 Jun, 2026 | 11:52
Updated At:18 Jun, 2026 | 18:00
Rejected At:
▼CVE Numbering Authority (CNA)
Memory safety bug fixed in Firefox 152

Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

Affected Products
Vendor
Mozilla CorporationMozilla
Product
Firefox
Versions
Unaffected
  • From 152 through * (rpm)
Vendor
Mozilla CorporationMozilla
Product
Thunderbird
Versions
Unaffected
  • From 152 through * (rpm)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Frédéric Wang Nélar
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://bugzilla.mozilla.org/show_bug.cgi?id=2007083
N/A
https://www.mozilla.org/security/advisories/mfsa2026-57/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-60/
N/A
Hyperlink: https://bugzilla.mozilla.org/show_bug.cgi?id=2007083
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-57/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-60/
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-119CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Type: CWE
CWE ID: CWE-119
Description: CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Metrics
VersionBase scoreBase severityVector
3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@mozilla.org
Published At:16 Jun, 2026 | 13:16
Updated At:18 Jun, 2026 | 19:16

Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

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:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A
Type: Secondary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches

Mozilla Corporation
mozilla
>>firefox>>Versions before 152.0.0(exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
Mozilla Corporation
mozilla
>>thunderbird>>Versions before 152.0.0(exclusive)
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
Weaknesses
CWE IDTypeSource
CWE-119Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-119
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://bugzilla.mozilla.org/show_bug.cgi?id=2007083security@mozilla.org
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-57/security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-60/security@mozilla.org
Vendor Advisory
Hyperlink: https://bugzilla.mozilla.org/show_bug.cgi?id=2007083
Source: security@mozilla.org
Resource:
Permissions Required
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-57/
Source: security@mozilla.org
Resource:
Vendor Advisory
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-60/
Source: security@mozilla.org
Resource:
Vendor Advisory

Change History

0
Information is not available yet

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Matching Score-8
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EPSS-0.38% / 29.24%
||
7 Day CHG~0.00%
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Rejected-Not Available
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Action-Not Available
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CWE ID-CWE-416
Use After Free
CVE-2026-6759
Matching Score-8
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Matching Score-8
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CVSS Score-7.5||HIGH
EPSS-0.36% / 28.07%
||
7 Day CHG~0.00%
Published-21 Apr, 2026 | 12:40
Updated-26 May, 2026 | 18:29
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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Action-Not Available
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Matching Score-8
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Matching Score-8
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CVSS Score-7.5||HIGH
EPSS-1.98% / 78.00%
||
7 Day CHG~0.00%
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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Matching Score-8
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Matching Score-8
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CVSS Score-7.5||HIGH
EPSS-0.53% / 40.78%
||
7 Day CHG~0.00%
Published-24 Mar, 2026 | 12:30
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
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Improper Check for Unusual or Exceptional Conditions
CVE-2026-4699
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.53% / 40.78%
||
7 Day CHG~0.00%
Published-24 Mar, 2026 | 12:30
Updated-12 May, 2026 | 16:52
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 Layout: Text and Fonts component

Incorrect boundary conditions 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-Mozilla Corporation
Product-firefoxFirefoxThunderbird
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2026-4706
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.45% / 35.90%
||
7 Day CHG~0.00%
Published-24 Mar, 2026 | 12:30
Updated-13 Apr, 2026 | 15:17
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 Graphics: Canvas2D component

Incorrect boundary conditions in the Graphics: Canvas2D 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-Mozilla Corporation
Product-firefoxThunderbirdFirefox
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2026-4713
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.43% / 34.51%
||
7 Day CHG~0.00%
Published-24 Mar, 2026 | 12:30
Updated-13 Apr, 2026 | 15:17
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 Graphics component

Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxThunderbirdFirefox
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2026-4695
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.51% / 39.14%
||
7 Day CHG~0.00%
Published-24 Mar, 2026 | 12:30
Updated-07 May, 2026 | 14:51
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 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxFirefoxThunderbird
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2026-4697
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.51% / 39.14%
||
7 Day CHG~0.00%
Published-24 Mar, 2026 | 12:30
Updated-07 May, 2026 | 14:52
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 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxFirefoxThunderbird
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2026-4726
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.53% / 40.57%
||
7 Day CHG~0.00%
Published-24 Mar, 2026 | 12:30
Updated-13 Apr, 2026 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Denial-of-service in the XML component

Denial-of-service in the XML component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-400
Uncontrolled Resource Consumption
CVE-2026-4693
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.53% / 40.78%
||
7 Day CHG~0.00%
Published-24 Mar, 2026 | 12:30
Updated-07 May, 2026 | 14:51
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: Playback component

Incorrect boundary conditions in the Audio/Video: Playback 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-Mozilla Corporation
Product-firefoxFirefoxThunderbird
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2026-4707
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.58% / 43.04%
||
7 Day CHG~0.00%
Published-24 Mar, 2026 | 12:30
Updated-13 Apr, 2026 | 15:17
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 Graphics: Canvas2D component

Incorrect boundary conditions in the Graphics: Canvas2D 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-Mozilla Corporation
Product-firefoxThunderbirdFirefox
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2026-4714
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.43% / 34.51%
||
7 Day CHG~0.00%
Published-24 Mar, 2026 | 12:30
Updated-13 Apr, 2026 | 15:17
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 component

Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxThunderbirdFirefox
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2026-4704
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.41% / 33.01%
||
7 Day CHG~0.00%
Published-24 Mar, 2026 | 12:30
Updated-13 Apr, 2026 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Denial-of-service in the WebRTC: Signaling component

Denial-of-service in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxThunderbirdFirefox
CWE ID-CWE-400
Uncontrolled Resource Consumption
CVE-2022-21190
Matching Score-8
Assigner-Snyk
ShareView Details
Matching Score-8
Assigner-Snyk
CVSS Score-7.5||HIGH
EPSS-3.72% / 88.37%
||
7 Day CHG~0.00%
Published-13 May, 2022 | 20:00
Updated-17 Sep, 2024 | 03:32
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Prototype Pollution

This affects the package convict before 6.2.3. This is a bypass of [CVE-2022-22143](https://security.snyk.io/vuln/SNYK-JS-CONVICT-2340604). The [fix](https://github.com/mozilla/node-convict/commit/3b86be087d8f14681a9c889d45da7fe3ad9cd880) introduced, relies on the startsWith method and does not prevent the vulnerability: before splitting the path, it checks if it starts with __proto__ or this.constructor.prototype. To bypass this check it's possible to prepend the dangerous paths with any string value followed by a dot, like for example foo.__proto__ or foo.this.constructor.prototype.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-convictconvict
CWE ID-CWE-1321
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
CVE-2026-8968
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.41% / 32.92%
||
7 Day CHG~0.00%
Published-19 May, 2026 | 12:30
Updated-20 May, 2026 | 14:56
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component

Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdFirefoxThunderbird
CWE ID-CWE-400
Uncontrolled Resource Consumption
CVE-2026-6781
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.29% / 20.90%
||
7 Day CHG~0.00%
Published-21 Apr, 2026 | 12:41
Updated-27 May, 2026 | 16:58
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Denial-of-service in the Audio/Video: Playback component

Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

Action-Not Available
Vendor-Mozilla Corporation
Product-thunderbirdfirefoxFirefoxThunderbird
CWE ID-CWE-400
Uncontrolled Resource Consumption
CVE-2026-4709
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.46% / 36.57%
||
7 Day CHG~0.00%
Published-24 Mar, 2026 | 12:30
Updated-13 Apr, 2026 | 15:17
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: GMP component

Incorrect boundary conditions in the Audio/Video: GMP 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-Mozilla Corporation
Product-firefoxThunderbirdFirefox
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2025-66453
Matching Score-8
Assigner-GitHub, Inc.
ShareView Details
Matching Score-8
Assigner-GitHub, Inc.
CVSS Score-5.5||MEDIUM
EPSS-0.23% / 13.72%
||
7 Day CHG~0.00%
Published-03 Dec, 2025 | 19:31
Updated-14 Apr, 2026 | 15:39
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Rhino vulnerable high CPU usage and potential DoS when passing specific numbers to toFixed() function

Rhino is an open-source implementation of JavaScript written entirely in Java. Prior to 1.8.1, 1.7.15.1, and 1.7.14.1, when an application passed an attacker controlled float poing number into the toFixed() function, it might lead to high CPU consumption and a potential Denial of Service. Small numbers go through this call stack: NativeNumber.numTo > DToA.JS_dtostr > DToA.JS_dtoa > DToA.pow5mult where pow5mult attempts to raise 5 to a ridiculous power. This vulnerability is fixed in 1.8.1, 1.7.15.1, and 1.7.14.1.

Action-Not Available
Vendor-Mozilla Corporation
Product-rhinorhino
CWE ID-CWE-400
Uncontrolled Resource Consumption
CVE-2021-38498
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-1.42% / 69.37%
||
7 Day CHG+0.03%
Published-03 Nov, 2021 | 00:03
Updated-04 Aug, 2024 | 01:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdfirefox_esrFirefoxFirefox ESRThunderbird
CWE ID-CWE-416
Use After Free
CVE-2025-55029
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.32% / 23.05%
||
7 Day CHG~0.00%
Published-19 Aug, 2025 | 20:52
Updated-13 Apr, 2026 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Malicious scripts could spam popups for denial of service attacks

Malicious scripts could bypass the popup blocker to spam new tabs, potentially resulting in denial of service attacks. This vulnerability was fixed in Firefox for iOS 142.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxFirefox for iOS
CWE ID-CWE-400
Uncontrolled Resource Consumption
CVE-2026-2801
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.29% / 20.33%
||
7 Day CHG~0.00%
Published-24 Feb, 2026 | 13:33
Updated-13 Apr, 2026 | 15:17
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: WebAssembly component

Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2025-5262
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.36% / 27.46%
||
7 Day CHG~0.00%
Published-27 May, 2025 | 12:29
Updated-19 Sep, 2025 | 17:18
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A double-free could have occurred in `vpx_codec_enc_init_multi` after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 139 and Thunderbird < 128.11.

Action-Not Available
Vendor-Mozilla Corporation
Product-thunderbirdThunderbird
CWE ID-CWE-415
Double Free
CVE-2020-25648
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-7.5||HIGH
EPSS-3.85% / 88.78%
||
7 Day CHG+0.07%
Published-20 Oct, 2020 | 00:00
Updated-04 Aug, 2024 | 15:40
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A flaw was found in the way NSS handled CCS (ChangeCipherSpec) messages in TLS 1.3. This flaw allows a remote attacker to send multiple CCS messages, causing a denial of service for servers compiled with the NSS library. The highest threat from this vulnerability is to system availability. This flaw affects NSS versions before 3.58.

Action-Not Available
Vendor-n/aOracle CorporationRed Hat, Inc.Fedora ProjectMozilla Corporation
Product-communications_pricing_design_centercommunications_offline_mediation_controllernetwork_security_servicesfedoraenterprise_linuxjd_edwards_enterpriseone_toolsnss
CWE ID-CWE-770
Allocation of Resources Without Limits or Throttling
CVE-2020-6817
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.72% / 49.02%
||
7 Day CHG~0.00%
Published-16 Feb, 2023 | 00:00
Updated-19 Mar, 2025 | 16:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS). Calls to bleach.clean with an allowed tag with an allowed style attribute are vulnerable to ReDoS. For example, bleach.clean(..., attributes={'a': ['style']}).

Action-Not Available
Vendor-Mozilla Corporation
Product-bleachMozilla Bleach
CWE ID-CWE-1333
Inefficient Regular Expression Complexity
CVE-2024-2613
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.50% / 38.88%
||
7 Day CHG~0.00%
Published-19 Mar, 2024 | 12:02
Updated-25 Feb, 2025 | 14:51
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Data was not properly sanitized when decoding a QUIC ACK frame; this could have led to unrestricted memory consumption and a crash. This vulnerability affects Firefox < 124.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxFirefoxfirefox
CWE ID-CWE-1021
Improper Restriction of Rendered UI Layers or Frames
CVE-2019-17007
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-1.38% / 68.61%
||
7 Day CHG~0.00%
Published-22 Oct, 2020 | 20:28
Updated-05 Aug, 2024 | 01:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In Network Security Services before 3.44, a malformed Netscape Certificate Sequence can cause NSS to crash, resulting in a denial of service.

Action-Not Available
Vendor-Mozilla CorporationSiemens AG
Product-ruggedcom_rox_rx1511ruggedcom_rox_rx1512_firmwareruggedcom_rox_rx1512network_security_servicesruggedcom_rox_mx5000_firmwareruggedcom_rox_rx1511_firmwareruggedcom_rox_rx1510ruggedcom_rox_rx1500_firmwareruggedcom_rox_rx1400ruggedcom_rox_rx1501ruggedcom_rox_rx1500ruggedcom_rox_rx1510_firmwareruggedcom_rox_rx5000ruggedcom_rox_mx5000ruggedcom_rox_rx1400_firmwareruggedcom_rox_rx1501_firmwareruggedcom_rox_rx5000_firmwareNSS
CWE ID-CWE-295
Improper Certificate Validation
CVE-2019-11706
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-9.73% / 94.90%
||
7 Day CHG~0.00%
Published-23 Jul, 2019 | 13:20
Updated-04 Aug, 2024 | 23:03
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A flaw in Thunderbird's implementation of iCal causes a type confusion in icaltimezone_get_vtimezone_properties when processing certain email messages, resulting in a crash. This vulnerability affects Thunderbird < 60.7.1.

Action-Not Available
Vendor-Mozilla Corporation
Product-thunderbirdThunderbird
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2023-32209
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.76% / 50.53%
||
7 Day CHG~0.00%
Published-19 Jun, 2023 | 09:36
Updated-27 May, 2025 | 16:53
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A maliciously crafted favicon could have led to an out of memory crash. This vulnerability affects Firefox < 113.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxFirefox
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-15681
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-1.08% / 60.69%
||
7 Day CHG~0.00%
Published-22 Oct, 2020 | 20:32
Updated-04 Aug, 2024 | 13:22
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

When multiple WASM threads had a reference to a module, and were looking up exported functions, one WASM thread could have overwritten another's entry in a shared stub table, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 82.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxFirefox
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