Important: firefox

Issue Overview: Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2. CVE-2026-84119 Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 15...

PT-2026-102530

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 157 Firefox ESR versions prior to 115.42 Firefox ESR versions prior to 140.17 Firefox ESR versions prior to 153.4 Thunderbird versions prior to 157 Description Incorrect boundary conditions exist within the Audio/Vide...

PT-2026-102557

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 157 Firefox ESR versions prior to 115.42 Firefox ESR versions prior to 140.17 Firefox ESR versions prior to 153.4 Thunderbird versions prior to 157 Description Uninitialized memory exists within the Audio/Video...

CVE-2026-100756: Improper Restriction of Operations within the Bounds of a Memory Buffer

Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17...

CVE-2026-100783: Use of Uninitialized Variable

Uninitialized memory in the Audio/Video component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17...

PT-2026-102579

Name of the Vulnerable Software and Affected Versions Thunderbird versions prior to 157 Firefox versions prior to 157 Description A race condition leads to a use-after-free issue within the Audio/Video component. A race condition occurs when the timing or order of events affects the correctness o...

CVE-2026-100805: Concurrent Execution using Shared Resource with Improper Synchronization

Race condition, use-after-free in the Audio/Video component. This vulnerability was fixed in Thunderbird 157 and Firefox 157...

Security Vulnerabilities fixed in Firefox ESR 153.4 — Mozilla

Note : We have changed how we publish advisories. We no longer roll all internally identified memory safety vulnerabilities into a single CVE and are now issuing an advisory for every individual bug. CVE-2026-100756: Incorrect boundary conditions in the Audio/Video: Playback component Reporter...

Mozilla Firefox ESR < 115.42

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 115.42. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-98 advisory. - Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was...

Mozilla Firefox ESR < 140.17

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 140.17. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-99 advisory. - Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was...

Mozilla Firefox ESR < 115.42

The version of Firefox ESR installed on the remote Windows host is prior to 115.42. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-98 advisory. - Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in...

Mozilla Firefox < 157.0

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 157.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-97 advisory. - Privilege escalation in the Places component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox...

Mozilla Firefox < 157.0

The version of Firefox installed on the remote Windows host is prior to 157.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-97 advisory. - Privilege escalation in the Places component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157...

Mozilla Firefox ESR < 140.17

The version of Firefox ESR installed on the remote Windows host is prior to 140.17. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-99 advisory. - Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in...

RLSA-2026:67133 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox: thunderbird: Privilege escalation in the DOM: Workers component CVE-2026-16365 firefox: thunderbird: Sandbox escape in the Remote Settings Client component...

OESA-2026-4122 firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. Security Fixes: Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird...

Security update for MozillaFirefox (important)

openSUSE security update: security update for mozillafirefox ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21951-1 Rating: important References: bsc1280371 Cross-References: CVE-2026-92005 CVE-2026-92006 CVE-2026-92007 CVE-2026-92008 CVE-2026-9200...

firefox: thunderbird: Use-after-free in the Audio/Video: Web Codecs component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the Audio/Video: Web Codecs component...

firefox: Use-after-free in the Audio/Video component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the Audio/Video component...

firefox: Use-after-free in the Audio/Video component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the Audio/Video component...