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Vulnerability Details :

CVE-2026-4684

Summary
Assigner-mozilla
Assigner Org ID-f16b083a-5664-49f3-a51e-8d479e5ed7fe
Published At-24 Mar, 2026 | 12:30
Updated At-15 Jul, 2026 | 00:50
Rejected At-
Credits

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.

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)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mozilla
Assigner Org ID:f16b083a-5664-49f3-a51e-8d479e5ed7fe
Published At:24 Mar, 2026 | 12:30
Updated At:15 Jul, 2026 | 00:50
Rejected At:
â–¼CVE Numbering Authority (CNA)
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.

Affected Products
Vendor
Mozilla CorporationMozilla
Product
Firefox
Versions
Unaffected
  • From 115.34 through 115.* (rpm)
  • From 140.9 through 140.* (rpm)
  • From 149 through * (rpm)
Vendor
Mozilla CorporationMozilla
Product
Thunderbird
Versions
Unaffected
  • From 140.9 through 140.* (rpm)
  • From 149 through * (rpm)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Oskar L
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://bugzilla.mozilla.org/show_bug.cgi?id=2011129
N/A
https://www.mozilla.org/security/advisories/mfsa2026-20/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-21/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-22/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-23/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-24/
N/A
Hyperlink: https://bugzilla.mozilla.org/show_bug.cgi?id=2011129
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-20/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-21/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-22/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-23/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-24/
Resource: N/A
â–¼Authorized Data Publishers (ADP)
1. CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-416CWE-416 Use After Free
CWECWE-362CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Type: CWE
CWE ID: CWE-416
Description: CWE-416 Use After Free
Type: CWE
CWE ID: CWE-362
Description: CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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
2. firefox: thunderbird: Race condition, use-after-free in the Graphics: WebRender component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Race condition, use-after-free in the Graphics: WebRender component

Affected Products
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 10
Collection URL
https://catalog.redhat.com/software/containers/
Package Name
firefox
CPEs
  • cpe:/o:redhat:enterprise_linux:10.1
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el10_1 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 10
Collection URL
https://catalog.redhat.com/software/containers/
Package Name
thunderbird
CPEs
  • cpe:/o:redhat:enterprise_linux:10.1
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el10_1 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 10.0 Extended Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/o:redhat:enterprise_linux_eus:10.0
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el10_0 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 10.0 Extended Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/o:redhat:enterprise_linux_eus:10.0
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el10_0 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 7 Extended Lifecycle Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/o:redhat:rhel_els:7
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el7_9 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:enterprise_linux:8
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_10 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:enterprise_linux:8
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_10 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.2 Advanced Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:rhel_aus:8.2
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_2 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.2 Advanced Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:rhel_aus:8.2
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_2 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:rhel_aus:8.4
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_4 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:rhel_aus:8.4
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_4 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:rhel_eus_long_life:8.4
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_4 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:rhel_eus_long_life:8.4
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_4 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:rhel_aus:8.6
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_6 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:rhel_aus:8.6
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_6 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.6 Telecommunications Update Service
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:rhel_tus:8.6
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_6 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.6 Telecommunications Update Service
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:rhel_tus:8.6
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_6 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:rhel_e4s:8.6
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_6 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:rhel_e4s:8.6
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_6 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.8 Telecommunications Update Service
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:rhel_tus:8.8
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_8 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.8 Telecommunications Update Service
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:rhel_tus:8.8
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_8 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:rhel_e4s:8.8
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_8 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:rhel_e4s:8.8
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el8_8 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:enterprise_linux:9
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el9_7 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:enterprise_linux:9
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el9_7 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:rhel_e4s:9.0
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el9_0 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:rhel_e4s:9.0
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el9_0 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:rhel_e4s:9.2
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el9_2 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:rhel_e4s:9.2
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el9_2 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9.4 Extended Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:rhel_eus:9.4
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el9_4 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9.4 Extended Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:rhel_eus:9.4
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el9_4 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9.6 Extended Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/a:redhat:rhel_eus:9.6
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el9_6 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9.6 Extended Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/a:redhat:rhel_eus:9.6
Default Status
affected
Versions
Unaffected
  • From 0:140.9.0-1.el9_6 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 10
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
rhel10/firefox-flatpak
CPEs
  • cpe:/o:redhat:enterprise_linux:10
Default Status
affected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 10
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
rhel10/thunderbird-flatpak
CPEs
  • cpe:/o:redhat:enterprise_linux:10
Default Status
affected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 6
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
firefox
CPEs
  • cpe:/o:redhat:enterprise_linux:6
Default Status
unknown
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 6
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/o:redhat:enterprise_linux:6
Default Status
unknown
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 7
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
thunderbird
CPEs
  • cpe:/o:redhat:enterprise_linux:7
Default Status
unknown
Problem Types
TypeCWE IDDescription
CWECWE-364Signal Handler Race Condition
Type: CWE
CWE ID: CWE-364
Description: Signal Handler Race Condition
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

RHSA-2026:8427: Red Hat Enterprise Linux Server (v. 7 ELS)

RHSA-2026:7843: Red Hat Enterprise Linux AppStream EUS (v. 10.0)

RHSA-2026:8315: Red Hat Enterprise Linux AppStream EUS (v. 10.0)

RHSA-2026:5931: Red Hat Enterprise Linux AppStream (v. 10)

RHSA-2026:6342: Red Hat Enterprise Linux AppStream (v. 10)

RHSA-2026:5932: Red Hat Enterprise Linux AppStream (v. 8)

RHSA-2026:6917: Red Hat Enterprise Linux AppStream (v. 8)

RHSA-2026:7840: Red Hat Enterprise Linux AppStream AUS (v. 8.2)

RHSA-2026:8285: Red Hat Enterprise Linux AppStream AUS (v. 8.2)

RHSA-2026:7858: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)

RHSA-2026:8850: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)

RHSA-2026:7842: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6)

RHSA-2026:8289: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6)

RHSA-2026:7838: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)

RHSA-2026:8288: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)

RHSA-2026:7839: Red Hat Enterprise Linux AppStream E4S (v.9.0)

RHSA-2026:8286: Red Hat Enterprise Linux AppStream E4S (v.9.0)

RHSA-2026:7841: Red Hat Enterprise Linux AppStream E4S (v.9.2)

RHSA-2026:8287: Red Hat Enterprise Linux AppStream E4S (v.9.2)

RHSA-2026:7845: Red Hat Enterprise Linux AppStream EUS (v.9.4)

RHSA-2026:8290: Red Hat Enterprise Linux AppStream EUS (v.9.4)

RHSA-2026:7837: Red Hat Enterprise Linux AppStream EUS (v.9.6)

RHSA-2026:8284: Red Hat Enterprise Linux AppStream EUS (v.9.6)

RHSA-2026:5930: Red Hat Enterprise Linux AppStream (v. 9)

RHSA-2026:6188: Red Hat Enterprise Linux AppStream (v. 9)

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Reported to Red Hat.2026-03-24 13:01:57
Made public.2026-03-24 12:30:20
Event: Reported to Red Hat.
Date: 2026-03-24 13:01:57
Event: Made public.
Date: 2026-03-24 12:30:20
Replaced By

Rejected Reason

References
HyperlinkResource
https://access.redhat.com/security/cve/CVE-2026-4684
vdb-entry
x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2450721
issue-tracking
x_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4684.json
x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:8427
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7843
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8315
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:5931
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:6342
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:5932
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:6917
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7840
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8285
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7858
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8850
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7842
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8289
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7838
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8288
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7839
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8286
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7841
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8287
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7845
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8290
vendor-advisory
x_refsource_REDHAT
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Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@mozilla.org
Published At:24 Mar, 2026 | 13:16
Updated At:15 Jul, 2026 | 02:22

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.

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

Mozilla Corporation
mozilla
>>firefox>>Versions before 115.34.0(exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
Mozilla Corporation
mozilla
>>firefox>>Versions before 149.0(exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
Mozilla Corporation
mozilla
>>firefox>>Versions from 128.0(inclusive) to 140.9.0(exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
Weaknesses
CWE IDTypeSource
CWE-362Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-416Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-364Secondary0b0ca135-0b70-47e7-9f44-1890c2a1c46c
CWE ID: CWE-362
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-416
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-364
Type: Secondary
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://bugzilla.mozilla.org/show_bug.cgi?id=2011129security@mozilla.org
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-20/security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-21/security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-22/security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-23/security@mozilla.org
N/A
https://www.mozilla.org/security/advisories/mfsa2026-24/security@mozilla.org
N/A
https://access.redhat.com/errata/RHSA-2026:59300b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:59310b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:59320b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:61880b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:63420b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:69170b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:78370b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:78380b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:78390b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:78400b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:78410b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:78420b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:78430b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:78450b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:78580b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:82840b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:82850b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:82860b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:82870b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:82880b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:82890b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:82900b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:83150b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:84270b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:88500b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/security/cve/CVE-2026-46840b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://bugzilla.redhat.com/show_bug.cgi?id=24507210b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4684.json0b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
Hyperlink: https://bugzilla.mozilla.org/show_bug.cgi?id=2011129
Source: security@mozilla.org
Resource:
Permissions Required
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-20/
Source: security@mozilla.org
Resource:
Vendor Advisory
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-21/
Source: security@mozilla.org
Resource:
Vendor Advisory
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-22/
Source: security@mozilla.org
Resource:
Vendor Advisory
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-23/
Source: security@mozilla.org
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-24/
Source: security@mozilla.org
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:5930
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:5931
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:5932
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:6188
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Hyperlink: https://access.redhat.com/errata/RHSA-2026:6342
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:6917
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:7837
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:7838
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:7839
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:7840
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:7841
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:7842
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:7843
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:7845
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:7858
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:8284
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:8285
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:8286
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:8287
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:8288
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:8289
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
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Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:8315
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:8427
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:8850
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/security/cve/CVE-2026-4684
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2450721
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4684.json
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A

Change History

0
Information is not available yet

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Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-6.5||MEDIUM
EPSS-0.36% / 28.46%
||
7 Day CHG~0.00%
Published-08 May, 2020 | 13:48
Updated-04 Aug, 2024 | 11:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

There is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptp_clock and cdev while resource deallocation. When a (high privileged) process allocates a ptp device file (like /dev/ptpX) and voluntarily goes to sleep. During this time if the underlying device is removed, it can cause an exploitable condition as the process wakes up to terminate and clean all attached files. The system crashes due to the cdev structure being invalid (as already freed) which is pointed to by the inode.

Action-Not Available
Vendor-openSUSECanonical Ltd.Red Hat, Inc.Linux Kernel Organization, IncNetApp, Inc.Debian GNU/Linux
Product-ubuntu_linuxh300s_firmwareh410c_firmwareh410sh610s_firmwareh300shci_compute_nodesteelstore_cloud_integrated_storageh300e_firmwareh610sh500ehci_management_nodeh500s_firmwareh500e_firmwareh700eh610c_firmwareh610cleaph300eh500sh615c_firmwareenterprise_linuxactive_iq_unified_managerelement_softwaresolidfiredebian_linuxlinux_kernelh410s_firmwareh700s_firmwareh410ch700e_firmwareh615ch700skernel
CWE ID-CWE-416
Use After Free
CVE-2020-10684
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-7.9||HIGH
EPSS-0.34% / 27.02%
||
7 Day CHG~0.00%
Published-24 Mar, 2020 | 00:00
Updated-04 Aug, 2024 | 11:06
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 Ansible Engine, all versions 2.7.x, 2.8.x and 2.9.x prior to 2.7.17, 2.8.9 and 2.9.6 respectively, when using ansible_facts as a subkey of itself and promoting it to a variable when inject is enabled, overwriting the ansible_facts after the clean. An attacker could take advantage of this by altering the ansible_facts, such as ansible_hosts, users and any other key data which would lead into privilege escalation or code injection.

Action-Not Available
Vendor-Debian GNU/LinuxRed Hat, Inc.Fedora Project
Product-debian_linuxopenstackfedoraansibleansible_towerAnsible
CWE ID-CWE-862
Missing Authorization
CWE ID-CWE-94
Improper Control of Generation of Code ('Code Injection')
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2016-9077
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-7||HIGH
EPSS-0.77% / 51.87%
||
7 Day CHG~0.00%
Published-11 Jun, 2018 | 21:00
Updated-06 Aug, 2024 | 02:42
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Canvas allows the use of the "feDisplacementMap" filter on images loaded cross-origin. The rendering by the filter is variable depending on the input pixel, allowing for timing attacks when the images are loaded from third party locations. This vulnerability affects Firefox < 50.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxFirefox
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2019-9796
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-2.04% / 79.16%
||
7 Day CHG~0.00%
Published-26 Apr, 2019 | 16:13
Updated-25 Nov, 2025 | 17:50
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use-after-free vulnerability can occur when the SMIL animation controller incorrectly registers with the refresh driver twice when only a single registration is expected. When a registration is later freed with the removal of the animation controller element, the refresh driver incorrectly leaves a dangling pointer to the driver's observer array. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

Action-Not Available
Vendor-Mozilla Corporation
Product-thunderbirdfirefoxThunderbirdFirefox ESRFirefox
CWE ID-CWE-416
Use After Free
CVE-2019-9818
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8.3||HIGH
EPSS-0.95% / 57.74%
||
7 Day CHG~0.00%
Published-23 Jul, 2019 | 13:23
Updated-04 Aug, 2024 | 22:01
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A race condition is present in the crash generation server used to generate data for the crash reporter. This issue can lead to a use-after-free in the main process, resulting in a potentially exploitable crash and a sandbox escape. *Note: this vulnerability only affects Windows. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

Action-Not Available
Vendor-Mozilla CorporationMicrosoft Corporation
Product-firefoxwindowsthunderbirdfirefox_esrThunderbirdFirefox ESRFirefox
CWE ID-CWE-416
Use After Free
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2019-9820
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.64% / 73.88%
||
7 Day CHG~0.00%
Published-23 Jul, 2019 | 13:23
Updated-04 Aug, 2024 | 22:01
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use-after-free vulnerability can occur in the chrome event handler when it is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdfirefox_esrThunderbirdFirefox ESRFirefox
CWE ID-CWE-416
Use After Free
CVE-2019-9790
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.84% / 76.73%
||
7 Day CHG~0.00%
Published-26 Apr, 2019 | 16:13
Updated-25 Nov, 2025 | 17:50
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use-after-free vulnerability can occur when a raw pointer to a DOM element on a page is obtained using JavaScript and the element is then removed while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

Action-Not Available
Vendor-Mozilla Corporation
Product-thunderbirdfirefoxThunderbirdFirefox ESRFirefox
CWE ID-CWE-416
Use After Free
CVE-2019-9821
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8.1||HIGH
EPSS-0.85% / 54.40%
||
7 Day CHG~0.00%
Published-23 Jul, 2019 | 13:23
Updated-04 Aug, 2024 | 22:01
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use-after-free vulnerability can occur in AssertWorkerThread due to a race condition with shared workers. This results in a potentially exploitable crash. This vulnerability affects Firefox < 67.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxFirefox
CWE ID-CWE-416
Use After Free
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2014-1563
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-10||HIGH
EPSS-5.80% / 92.34%
||
7 Day CHG~0.00%
Published-03 Sep, 2014 | 10:00
Updated-06 May, 2026 | 22:30
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 vulnerability in the mozilla::DOMSVGLength::GetTearOff function in Mozilla Firefox before 32.0, Firefox ESR 31.x before 31.1, and Thunderbird 31.x before 31.1 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via an SVG animation with DOM interaction that triggers incorrect cycle collection.

Action-Not Available
Vendor-n/aopenSUSEMozilla CorporationOracle Corporation
Product-evergreenthunderbirdfirefoxsolarisopensusen/a
CWE ID-CWE-416
Use After Free
CVE-2021-38504
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-1.59% / 73.05%
||
7 Day CHG~0.00%
Published-08 Dec, 2021 | 21:21
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

When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Action-Not Available
Vendor-Debian GNU/LinuxMozilla Corporation
Product-firefoxthunderbirddebian_linuxfirefox_esrFirefoxFirefox ESRThunderbird
CWE ID-CWE-416
Use After Free
CVE-2016-9079
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-87.60% / 99.74%
||
7 Day CHG~0.00%
Published-11 Jun, 2018 | 21:00
Updated-04 Nov, 2025 | 14:34
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Known KEV||Action Due Date - 2023-07-13||Apply updates per vendor instructions.

A use-after-free vulnerability in SVG Animation has been discovered. An exploit built on this vulnerability has been discovered in the wild targeting Firefox and Tor Browser users on Windows. This vulnerability affects Firefox < 50.0.2, Firefox ESR < 45.5.1, and Thunderbird < 45.5.1.

Action-Not Available
Vendor-torprojectMozilla CorporationMicrosoft CorporationRed Hat, Inc.Debian GNU/Linux
Product-enterprise_linuxtordebian_linuxenterprise_linux_serverenterprise_linux_server_ausenterprise_linux_server_euswindowsenterprise_linux_desktopfirefoxenterprise_linux_workstationthunderbirdFirefoxFirefox ESRThunderbirdFirefox, Firefox ESR, and Thunderbird
CWE ID-CWE-416
Use After Free
CVE-2024-1454
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-3.4||LOW
EPSS-0.42% / 34.63%
||
7 Day CHG~0.00%
Published-12 Feb, 2024 | 22:29
Updated-07 Nov, 2025 | 00:20
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Opensc: memory use after free in authentic driver when updating token info

The use-after-free vulnerability was found in the AuthentIC driver in OpenSC packages, occuring in the card enrolment process using pkcs15-init when a user or administrator enrols or modifies cards. An attacker must have physical access to the computer system and requires a crafted USB device or smart card to present the system with specially crafted responses to the APDUs, which are considered high complexity and low severity. This manipulation can allow for compromised card management operations during enrolment.

Action-Not Available
Vendor-opensc_projectFedora ProjectRed Hat, Inc.
Product-openscfedoraenterprise_linuxRed Hat Enterprise Linux 9Red Hat Enterprise Linux 8Red Hat Enterprise Linux 7
CWE ID-CWE-416
Use After Free
CVE-2024-12747
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-5.6||MEDIUM
EPSS-0.38% / 30.29%
||
7 Day CHG~0.00%
Published-14 Jan, 2025 | 17:39
Updated-30 Jun, 2026 | 00:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Rsync: race condition in rsync handling symbolic links

A flaw was found in rsync. This vulnerability arises from a race condition during rsync's handling of symbolic links. Rsync's default behavior when encountering symbolic links is to skip them. If an attacker replaced a regular file with a symbolic link at the right time, it was possible to bypass the default behavior and traverse symbolic links. Depending on the privileges of the rsync process, an attacker could leak sensitive information, potentially leading to privilege escalation.

Action-Not Available
Vendor-Red Hat, Inc.
Product-Red Hat Discovery 1.14Red Hat OpenShift Container Platform 4Red Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2023-3301
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-5.6||MEDIUM
EPSS-0.25% / 16.59%
||
7 Day CHG~0.00%
Published-13 Sep, 2023 | 16:09
Updated-13 Feb, 2025 | 16:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Triggerable assertion due to race condition in hot-unplug

A flaw was found in QEMU. The async nature of hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service.

Action-Not Available
Vendor-n/aRed Hat, Inc.QEMUFedora Project
Product-qemuenterprise_linuxRed Hat Enterprise Linux 6Red Hat Enterprise Linux 8 Advanced VirtualizationExtra Packages for Enterprise LinuxRed Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat OpenStack Platform 13 (Queens)FedoraqemuRed Hat Enterprise Linux 8
CWE ID-CWE-617
Reachable Assertion
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2019-3805
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-5.5||MEDIUM
EPSS-0.19% / 8.99%
||
7 Day CHG~0.00%
Published-03 May, 2019 | 19:25
Updated-04 Aug, 2024 | 19:19
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 discovered in wildfly versions up to 16.0.0.Final that would allow local users who are able to execute init.d script to terminate arbitrary processes on the system. An attacker could exploit this by modifying the PID file in /var/run/jboss-eap/ allowing the init.d script to terminate any process as root.

Action-Not Available
Vendor-Red Hat, Inc.
Product-jboss_enterprise_application_platformwildflywildfly
CWE ID-CWE-364
Signal Handler Race Condition
CWE ID-CWE-269
Improper Privilege Management
CVE-2024-11708
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-6.5||MEDIUM
EPSS-0.34% / 26.19%
||
7 Day CHG~0.00%
Published-26 Nov, 2024 | 13:34
Updated-04 Apr, 2025 | 16:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Missing thread synchronization primitives could have led to a data race on members of the PlaybackParams structure. This vulnerability affects Firefox < 133 and Thunderbird < 133.

Action-Not Available
Vendor-Mozilla Corporation
Product-thunderbirdfirefoxFirefoxThunderbirdfirefoxthunderbird
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2019-17013
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-0.85% / 54.31%
||
7 Day CHG~0.00%
Published-08 Jan, 2020 | 21:25
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

Mozilla developers reported memory safety bugs present in Firefox 70. 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 affects Firefox < 71.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxFirefox
CWE ID-CWE-416
Use After Free
CWE ID-CWE-787
Out-of-bounds Write
CVE-2019-11757
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-1.34% / 68.28%
||
7 Day CHG~0.00%
Published-08 Jan, 2020 | 19:26
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

When following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it. This resulted in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

Action-Not Available
Vendor-Mozilla CorporationCanonical Ltd.
Product-firefoxubuntu_linuxthunderbirdfirefox_esrFirefoxFirefox ESRThunderbird
CWE ID-CWE-416
Use After Free
CVE-2019-11761
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-5.4||MEDIUM
EPSS-0.79% / 52.52%
||
7 Day CHG~0.00%
Published-08 Jan, 2020 | 19:52
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

By using a form with a data URI it was possible to gain access to the privileged JSONView object that had been cloned into content. Impact from exposing this object appears to be minimal, however it was a bypass of existing defense in depth mechanisms. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

Action-Not Available
Vendor-Mozilla CorporationCanonical Ltd.
Product-firefoxubuntu_linuxthunderbirdfirefox_esrFirefoxFirefox ESRThunderbird
CWE ID-CWE-862
Missing Authorization
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2019-11736
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-7||HIGH
EPSS-0.21% / 11.22%
||
7 Day CHG~0.00%
Published-27 Sep, 2019 | 17:20
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

The Mozilla Maintenance Service does not guard against files being hardlinked to another file in the updates directory, allowing for the replacement of local files, including the Maintenance Service executable, which is run with privileged access. Additionally, there was a race condition during checks for junctions and symbolic links by the Maintenance Service, allowing for potential local file and directory manipulation to be undetected in some circumstances. This allows for potential privilege escalation by a user with unprivileged local access. <br>*Note: These attacks requires local system access and only affects Windows. Other operating systems are not affected.*. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.

Action-Not Available
Vendor-Mozilla CorporationMicrosoft Corporation
Product-firefoxwindowsfirefox_esrFirefoxFirefox ESR
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2019-11746
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-1.71% / 75.01%
||
7 Day CHG~0.00%
Published-27 Sep, 2019 | 17:16
Updated-25 Nov, 2025 | 17:50
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use-after-free vulnerability can occur while manipulating video elements if the body is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefox_esrthunderbirdfirefoxFirefoxFirefox ESRThunderbird
CWE ID-CWE-416
Use After Free
CVE-2019-11756
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-1.50% / 71.63%
||
7 Day CHG~0.00%
Published-08 Jan, 2020 | 19:23
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

Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). This vulnerability affects Firefox < 71.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxFirefox
CWE ID-CWE-416
Use After Free
CVE-2019-11752
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-2.16% / 80.31%
||
7 Day CHG~0.00%
Published-27 Sep, 2019 | 17:14
Updated-25 Nov, 2025 | 17:50
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

It is possible to delete an IndexedDB key value and subsequently try to extract it during conversion. This results in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefox_esrthunderbirdfirefoxFirefoxFirefox ESRThunderbird
CWE ID-CWE-416
Use After Free
CVE-2026-5947
Matching Score-6
Assigner-Internet Systems Consortium (ISC)
ShareView Details
Matching Score-6
Assigner-Internet Systems Consortium (ISC)
CVSS Score-7.5||HIGH
EPSS-1.39% / 69.40%
||
7 Day CHG~0.00%
Published-20 May, 2026 | 13:10
Updated-23 Jul, 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
SIG(0) validation during query flood may lead to undefined behavior

Undefined behavior may result due to a race condition leading to a use-after-free violation. If BIND receives an incoming DNS message signed with SIG(0), it begins work to validate that signature. If, during that validation, the "recursive-clients" limit is reached (as would occur during a query flood), and that same DNS message is discarded per the limit, there is a brief window of time while the SIG(0) validation may attempt to read the now-discarded DNS message. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.28 through 9.18.49 and 9.18.28-S1 through 9.18.49-S1 are NOT affected.

Action-Not Available
Vendor-Red Hat, Inc.Internet Systems Consortium, Inc.
Product-bindBIND 9Red Hat Enterprise Linux 9Red Hat Enterprise Linux 7Red Hat Enterprise Linux 6Red Hat Enterprise Linux 8Red Hat Enterprise Linux 10Red Hat Hardened ImagesRed Hat OpenShift Container Platform 4
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE ID-CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition
CWE ID-CWE-416
Use After Free
CVE-2013-5616
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-6.67% / 93.17%
||
7 Day CHG~0.00%
Published-11 Dec, 2013 | 15:00
Updated-29 Apr, 2026 | 01:13
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 vulnerability in the nsEventListenerManager::HandleEventSubType function in Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbird before 24.2, and SeaMonkey before 2.23 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via vectors related to mListeners event listeners.

Action-Not Available
Vendor-n/aCanonical Ltd.openSUSESUSERed Hat, Inc.Mozilla CorporationFedora Project
Product-thunderbirdsuse_linux_enterprise_software_development_kitubuntu_linuxseamonkeyenterprise_linux_server_tusenterprise_linux_desktopenterprise_linux_server_eusenterprise_linux_server_ausfedorafirefoxenterprise_linux_serverenterprise_linux_workstationsuse_linux_enterprise_serverenterprise_linux_eussuse_linux_enterprise_desktopopensusen/a
CWE ID-CWE-416
Use After Free
CVE-2024-0775
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.22% / 13.28%
||
7 Day CHG~0.00%
Published-22 Jan, 2024 | 13:03
Updated-20 Nov, 2025 | 18:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Kernel: use-after-free while changing the mount option in __ext4_remount leading

A use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in ext4 in the Linux kernel. This flaw allows a local user to cause an information leak problem while freeing the old quota file names before a potential failure, leading to a use-after-free.

Action-Not Available
Vendor-Red Hat, Inc.Linux Kernel Organization, Inc
Product-enterprise_linuxlinux_kernelRed Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6Red Hat Enterprise Linux 9
CWE ID-CWE-416
Use After Free
CVE-2019-11713
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-2.15% / 80.21%
||
7 Day CHG~0.00%
Published-23 Jul, 2019 | 13:18
Updated-25 Nov, 2025 | 17:50
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use-after-free vulnerability can occur in HTTP/2 when a cached HTTP/2 stream is closed while still in use, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

Action-Not Available
Vendor-Mozilla Corporation
Product-thunderbirdfirefoxFirefoxFirefox ESRThunderbird
CWE ID-CWE-416
Use After Free
CVE-2019-11692
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.60% / 73.32%
||
7 Day CHG~0.00%
Published-23 Jul, 2019 | 13:23
Updated-25 Nov, 2025 | 17:50
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use-after-free vulnerability can occur when listeners are removed from the event listener manager while still in use, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

Action-Not Available
Vendor-Mozilla Corporation
Product-thunderbirdfirefoxThunderbirdFirefox ESRFirefox
CWE ID-CWE-416
Use After Free
CVE-2019-11691
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.61% / 73.35%
||
7 Day CHG~0.00%
Published-23 Jul, 2019 | 13:23
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 use-after-free vulnerability can occur when working with XMLHttpRequest (XHR) in an event loop, causing the XHR main thread to be called after it has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdfirefox_esrThunderbirdFirefox ESRFirefox
CWE ID-CWE-416
Use After Free
CVE-2024-10468
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.40% / 32.21%
||
7 Day CHG~0.00%
Published-29 Oct, 2024 | 12:19
Updated-04 Nov, 2024 | 13:29
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Potential race conditions in IndexedDB could have caused memory corruption, leading to a potentially exploitable crash. This vulnerability affects Firefox < 132 and Thunderbird < 132.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdFirefoxThunderbirdfirefoxthunderbird
CWE ID-CWE-770
Allocation of Resources Without Limits or Throttling
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2024-10459
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-6.5||MEDIUM
EPSS-0.60% / 45.00%
||
7 Day CHG~0.00%
Published-29 Oct, 2024 | 12:19
Updated-03 Nov, 2025 | 22:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An attacker could have caused a use-after-free when accessibility was enabled, leading to a potentially exploitable crash. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Firefox ESR < 115.17, Thunderbird < 128.4, and Thunderbird < 132.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdFirefoxFirefox ESRThunderbird
CWE ID-CWE-416
Use After Free
CVE-2026-59850
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-4.3||MEDIUM
EPSS-0.29% / 20.68%
||
7 Day CHG~0.00%
Published-21 Jul, 2026 | 14:15
Updated-22 Jul, 2026 | 20:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Libssh: libssh: use-after-free via data callbacks on closed channels

A flaw was found in libssh. If data packets are processed after a channel is closed, channel data callbacks can be invoked after the associated data has already been freed, leading to crashes or possible use-after-free conditions.

Action-Not Available
Vendor-Red Hat, Inc.
Product-Red Hat Enterprise Linux 9Red Hat Hardened ImagesRed Hat Enterprise Linux 10Red Hat Enterprise Linux 8
CWE ID-CWE-416
Use After Free
CVE-2024-0752
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-6.5||MEDIUM
EPSS-0.42% / 34.41%
||
7 Day CHG~0.00%
Published-23 Jan, 2024 | 13:48
Updated-20 Jun, 2025 | 19:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use-after-free crash could have occurred on macOS if a Firefox update were being applied on a very busy system. This could have resulted in an exploitable crash. This vulnerability affects Firefox < 122.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxFirefox
CWE ID-CWE-416
Use After Free
CVE-2025-62230
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-7.3||HIGH
EPSS-0.26% / 17.97%
||
7 Day CHG-0.00%
Published-30 Oct, 2025 | 05:19
Updated-01 Jul, 2026 | 15:13
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Xorg: xwayland: use-after-free in xkb client resource removal

A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect.

Action-Not Available
Vendor-X.Org FoundationRed Hat, Inc.IBM CorporationDebian GNU/Linux
Product-xwaylandenterprise_linux_tusx_serveraixenterprise_linux_eusviosenterprise_linux_elsenterprise_linuxdebian_linuxenterprise_linux_update_services_for_sap_solutionsenterprise_linux_ausRed Hat Enterprise Linux 8.6 Telecommunications Update ServiceRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat Enterprise Linux 6Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat Enterprise Linux 10Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONRed Hat Enterprise Linux 8.8 Telecommunications Update ServiceXwaylandRed Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat Enterprise Linux 8Red Hat Enterprise Linux 9Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat Enterprise Linux 8.6 Update Services for SAP Solutions
CWE ID-CWE-416
Use After Free
CVE-2024-0582
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-7.8||HIGH
EPSS-12.84% / 95.88%
||
7 Day CHG~0.00%
Published-16 Jan, 2024 | 14:33
Updated-20 Nov, 2025 | 07:09
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Kernel: io_uring: page use-after-free vulnerability via buffer ring mmap

A memory leak flaw was found in the Linux kernel’s io_uring functionality in how a user registers a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then frees it. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Action-Not Available
Vendor-Red Hat, Inc.Linux Kernel Organization, Inc
Product-linux_kernelRed Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6Red Hat Enterprise Linux 9
CWE ID-CWE-416
Use After Free
CVE-2024-0562
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-7.8||HIGH
EPSS-0.25% / 16.99%
||
7 Day CHG~0.00%
Published-15 Jan, 2024 | 19:01
Updated-15 Nov, 2025 | 08:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Kernel: use-after-free after removing device in wb_inode_writeback_end in mm/page-writeback.c

A use-after-free flaw was found in the Linux Kernel. When a disk is removed, bdi_unregister is called to stop further write-back and waits for associated delayed work to complete. However, wb_inode_writeback_end() may schedule bandwidth estimation work after this has completed, which can result in the timer attempting to access the recently freed bdi_writeback.

Action-Not Available
Vendor-Red Hat, Inc.Linux Kernel Organization, Inc
Product-enterprise_linuxlinux_kernelRed Hat Enterprise Linux 7Red Hat Enterprise Linux 6Red Hat Enterprise Linux 8Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat Enterprise Linux 9
CWE ID-CWE-416
Use After Free
CVE-2024-0746
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-6.5||MEDIUM
EPSS-0.73% / 50.55%
||
7 Day CHG~0.00%
Published-23 Jan, 2024 | 13:48
Updated-20 Jun, 2025 | 19:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A Linux user opening the print preview dialog could have caused the browser to crash. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.

Action-Not Available
Vendor-Mozilla CorporationDebian GNU/Linux
Product-thunderbirdfirefox_esrfirefoxdebian_linuxFirefoxThunderbirdFirefox ESR
CWE ID-CWE-416
Use After Free
CVE-2024-0232
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-4.7||MEDIUM
EPSS-0.34% / 26.88%
||
7 Day CHG~0.00%
Published-16 Jan, 2024 | 14:01
Updated-21 Nov, 2025 | 06:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Sqlite: use-after-free bug in jsonparseaddnodearray

A heap use-after-free issue has been identified in SQLite in the jsonParseAddNodeArray() function in sqlite3.c. This flaw allows a local attacker to leverage a victim to pass specially crafted malicious input to the application, potentially causing a crash and leading to a denial of service.

Action-Not Available
Vendor-sqliteRed Hat, Inc.Fedora Project
Product-extra_packages_for_enterprise_linuxsqliteenterprise_linuxfedoraRed Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6Red Hat Enterprise Linux 9
CWE ID-CWE-416
Use After Free
CVE-2023-6859
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-1.09% / 61.97%
||
7 Day CHG~0.00%
Published-19 Dec, 2023 | 13:38
Updated-13 Feb, 2025 | 17:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use-after-free condition affected TLS socket creation when under memory pressure. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

Action-Not Available
Vendor-Debian GNU/LinuxMozilla Corporation
Product-firefoxthunderbirddebian_linuxfirefox_esrFirefox ESRThunderbirdFirefox
CWE ID-CWE-416
Use After Free
CVE-2024-0217
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-3.3||LOW
EPSS-0.23% / 13.68%
||
7 Day CHG~0.00%
Published-03 Jan, 2024 | 17:04
Updated-21 Nov, 2025 | 06:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Packagekitd: use-after-free in idle function callback

A use-after-free flaw was found in PackageKitd. In some conditions, the order of cleanup mechanics for a transaction could be impacted. As a result, some memory access could occur on memory regions that were previously freed. Once freed, a memory region can be reused for other allocations and any previously stored data in this memory region is considered lost.

Action-Not Available
Vendor-packagekit_projectRed Hat, Inc.Fedora Project
Product-packagekitenterprise_linuxfedoraRed Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6Red Hat Enterprise Linux 9
CWE ID-CWE-416
Use After Free
CVE-2024-0193
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-7.8||HIGH
EPSS-0.84% / 54.17%
||
7 Day CHG~0.00%
Published-02 Jan, 2024 | 18:05
Updated-05 Jun, 2026 | 00:22
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation

A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFT_CHAIN object or NFT_OBJECT object, allowing a local unprivileged user with CAP_NET_ADMIN capability to escalate their privileges on the system.

Action-Not Available
Vendor-Linux Kernel Organization, IncRed Hat, Inc.
Product-codeready_linux_builder_for_ibm_z_systems_eusenterprise_linux_server_ausenterprise_linux_for_arm_64enterprise_linux_for_ibm_z_systems_elscodeready_linux_builder_for_euscodeready_linux_builder_for_power_little_endian_eusenterprise_linuxenterprise_linux_for_power_little_endian_eusenterprise_linux_for_ibm_z_systems_euscodeready_linux_builderenterprise_linux_for_elsenterprise_linux_for_eusenterprise_linux_for_ibm_z_systemsopenshift_loggingenterprise_linux_for_power_little_endianenterprise_linux_for_power_little_endian_elslinux_kernelenterprise_linux_for_arm_64_elscodeready_linux_builder_for_power_little_endianenterprise_linux_for_update_services_for_sap_solutionsenterprise_linux_for_arm_64_euscodeready_linux_builder_for_ibm_z_systemsenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsRed Hat Enterprise Linux 9Red Hat Enterprise Linux 6Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRHOL-5.8-RHEL-9
CWE ID-CWE-416
Use After Free
CVE-2023-6857
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-5.3||MEDIUM
EPSS-0.66% / 48.01%
||
7 Day CHG~0.00%
Published-19 Dec, 2023 | 13:38
Updated-13 Feb, 2025 | 17:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary. *This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected.* This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

Action-Not Available
Vendor-Linux Kernel Organization, IncGoogle LLCDebian GNU/LinuxApple Inc.Mozilla Corporation
Product-debian_linuxthunderbirdlinux_kernelfirefoxandroidfirefox_esrmacosFirefox ESRThunderbirdFirefox
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2023-6862
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-0.95% / 57.65%
||
7 Day CHG~0.00%
Published-19 Dec, 2023 | 13:38
Updated-13 Feb, 2025 | 17:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use-after-free was identified in the `nsDNSService::Init`. This issue appears to manifest rarely during start-up. This vulnerability affects Firefox ESR < 115.6 and Thunderbird < 115.6.

Action-Not Available
Vendor-Debian GNU/LinuxMozilla Corporation
Product-firefox_esrthunderbirddebian_linuxFirefox ESRThunderbird
CWE ID-CWE-416
Use After Free
CVE-2023-6200
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-7.5||HIGH
EPSS-2.17% / 80.36%
||
7 Day CHG~0.00%
Published-28 Jan, 2024 | 12:19
Updated-05 Jun, 2025 | 19:45
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Kernel: icmpv6 router advertisement packets, aka linux tcp/ip remote code execution vulnerability

A race condition was found in the Linux Kernel. Under certain conditions, an unauthenticated attacker from an adjacent network could send an ICMPv6 router advertisement packet, causing arbitrary code execution.

Action-Not Available
Vendor-n/aFedora ProjectLinux Kernel Organization, IncRed Hat, Inc.
Product-linux_kernelRed Hat Enterprise Linux 7Red Hat Enterprise Linux 9FedoraRed Hat Virtualization 4Red Hat Enterprise Linux 6kernelRed Hat Enterprise Linux 8
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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