Mozilla -- Multiple vulnerabilities

CVE-2026-4688: Sandbox escape due to use-after-free in Disability Access APIs. CVE-2026-4695: Incorrect boundary conditions in the Audio/Video: Web Codecs component. CVE-2026-4697: Incorrect boundary conditions in the Audio/Video: Web Codecs component. CVE-2026-4700: Mitigation bypass in the...

MiracleLinux 9 : firefox-140.3.0-1.el9_6.ML.1 (AXSA:2025-10915:32)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2025-10915:32 advisory. firefox: thunderbird: Sandbox escape due to use-after-free in the Graphics: Canvas2D component CVE-2025-10527 firefox: thunderbird: Incorrect...

PT-2026-27405

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 115.34 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description The Graphics: Canvas2D component contains incorrect bounda...

PT-2026-27413

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description An issue exists in the Graphics: Canvas2D component due to uninitialized memory. Recommendation...

PT-2026-27404

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 115.34 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description The Graphics Canvas2D component contains incorrect boundar...

TencentOS Server 4: firefox (TSSA-2025:0712)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0712 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities...

FreeBSD : Firefox -- Sandbox escape due to integer overflow (f752879f-b809-11f0-8016-b42e991fc52e)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the f752879f-b809-11f0-8016-b42e991fc52e advisory. https://bugzilla.mozilla.org/showbug.cgi?id=1987246 reports: Sandbox escape due to integer overflow in...

FreeBSD : Firefox -- Sandbox escape due to use-after-free (82595339-b808-11f0-8016-b42e991fc52e)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 82595339-b808-11f0-8016-b42e991fc52e advisory. https://bugzilla.mozilla.org/showbug.cgi?id=1984825 reports: Sandbox escape due to use-after-free in th...

FreeBSD : Mozilla -- Same-origin policy bypass in the Graphics: Canvas2D component (0723a60e-b80a-11f0-8016-b42e991fc52e)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 0723a60e-b80a-11f0-8016-b42e991fc52e advisory. https://bugzilla.mozilla.org/showbug.cgi?id=1979782 reports: Same-origin policy bypass in the Graphics:...

FreeBSD : Firefox -- Sandbox escape due to undefined behavior (8b5f4eb3-b808-11f0-8016-b42e991fc52e)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 8b5f4eb3-b808-11f0-8016-b42e991fc52e advisory. https://bugzilla.mozilla.org/showbug.cgi?id=1986185 reports: Sandbox escape due to undefined behavior,...

Astra Linux – Vulnerability in Firefox, Thunderbird

Bypass of the same-origin policy in the Graphics:Canvas2D component. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2...

Astra Linux – Vulnerability in Firefox, Thunderbird

Sandbox escape due to undefined behavior, invalid pointer in the Graphics:Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3...

Astra Linux – Vulnerability in Firefox, Thunderbird

Sandbox escape due to a use-after-free in the Graphics:Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3...

Astra Linux – Vulnerability in Firefox

Sandbox escape due to integer overflow in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143.0.3...

Mozilla Firefox Security Bypass Vulnerability (CNVD-2025-26888)

Mozilla Firefox is an open source web browser from the Mozilla Foundation in the United States. Mozilla Firefox suffers from a security bypass vulnerability caused by an integer overflow in the Graphics:Canvas2D component. An attacker could exploit this vulnerability to cause a sandbox escape...

OPENSUSE-SU-2025:20021-1 Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues: Changes in MozillaThunderbird: Mozilla Thunderbird 140.3.0 ESR: Right-clicking 'List-ID' - 'Unsubscribe' created double encoded draft subject Thunderbird could crash on startup Thunderbird could crash when importing mail Opening Websi...

TencentOS Server 3: firefox (TSSA-2025:0792)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0792 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

FreeBSD : Firefox -- Sandbox escape (f3550d26-ab7d-11f0-b961-b42e991fc52e)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the f3550d26-ab7d-11f0-b961-b42e991fc52e advisory. [email protected] reports: Sandbox excape due to integer overflow in the Graphics: Canvas2D componen...

thunderbird security update

An update is available for thunderbird. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Mozilla Thunderbird is a standalone mail and newsgroup client. Security...

RLSA-2025:16156 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Sandbox escape due to use-after-free in the Graphics: Canvas2D component CVE-2025-10527 firefox: thunderbird: Incorrect boundary conditions in the JavaScript: GC component CVE-2025-10532 firefox:...