RLSA-2026:21380 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component CVE-2026-8388 firefox: Other issue in the JavaScript Engine component CVE-2026-8391 firefo...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component...

firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure due to incorrect boundary conditions in the Audio/Video component...

firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Libraries component in NSS...

firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Libraries component in NSS...

firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Libraries component in NSS...

firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the DOM: Device Interfaces component...

EUVD-2026-30894

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

FreeBSD : Mozilla -- Incorrect boundary conditions (76763f24-4aae-11f1-88d3-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 76763f24-4aae-11f1-88d3-b42e991fc52e advisory. https://bugzilla.mozilla.org/showbug.cgi?id=2029301 reports: Incorrect boundary conditions in the...

PT-2026-38429

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Thunderbird versions prior to 150 Firefox ESR versions prior to 140.10.2 Firefox ESR versions prior to 115.35.2 Description Incorrect boundary conditions exist in the Audio/Video: Playback component. Recommendatio...

UBUNTU-CVE-2026-7320

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

PT-2026-35735

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Thunderbird versions prior to 150 Firefox ESR versions prior to 140.10.1 Description A sandbox escape exists in the WebRTC: Networking component caused by incorrect boundary conditions. A sandbox is a security...

firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the DOM: Device Interfaces component...

EUVD-2026-24105

Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10...

CVE-2026-6764

Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

PT-2026-33950

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Firefox ESR versions prior to 140.10 Thunderbird versions prior to 150 Thunderbird versions prior to 140.10 Description Incorrect boundary conditions exist in the DOM: Device Interfaces component. Recommendations...

Mozilla -- Incorrect boundary conditions

https://bugzilla.mozilla.org/showbug.cgi?id=2021770 reports: Incorrect boundary conditions in the WebRTC: Networking component...

Mozilla -- Incorrect boundary conditions

https://bugzilla.mozilla.org/showbug.cgi?id=2026089 reports: Incorrect boundary conditions in the Libraries component in NSS...

firefox: thunderbird: Incorrect boundary conditions in the Audio/Video component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Audio/Video component...

firefox: thunderbird: Incorrect boundary conditions in the Layout: Text and Fonts component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Layout: Text and Fonts component...