CVE-2026-12291

Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12...

PT-2026-49658

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 152 Firefox ESR versions prior to 140.12 Firefox ESR versions prior to 115.37 Thunderbird versions prior to 152 Thunderbird versions prior to 140.12 Description Privilege escalation is possible within the Graphics:...

PT-2026-49684

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 152 Firefox ESR versions prior to 140.12 Thunderbird versions prior to 152 Thunderbird versions prior to 140.12 Description A mitigation bypass exists within the DOM security component...

PT-2026-49668

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 152 Firefox ESR versions prior to 140.12 Firefox ESR versions prior to 115.37 Thunderbird versions prior to 152 Thunderbird versions prior to 140.12 Description JIT miscompilation occurs in the DOM: Core & HTML...

PT-2026-49681

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 152 Firefox ESR versions prior to 140.12 Thunderbird versions prior to 152 Thunderbird versions prior to 140.12 Description A memory safety bug exists in the software, which could lead to unexpected behavior or crashe...

PT-2026-49665

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 152 Firefox ESR versions prior to 140.12 Thunderbird versions prior to 152 Thunderbird versions prior to 140.12 Description A sandbox escape exists within the Security: Process Sandboxing component. A sandbox is a...

PT-2026-49679

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 152 Firefox ESR versions prior to 140.12 Thunderbird versions prior to 152 Thunderbird versions prior to 140.12 Description A memory safety bug exists in the software, which could lead to unexpected behavior or crashe...

PT-2026-49662

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 152 Thunderbird versions prior to 152 Description A use-after-free issue exists in the Graphics: WebGPU component. Use-after-free is a memory corruption flaw that occurs when an application continues to use a pointer...

PT-2026-49691

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 152 Thunderbird versions prior to 152 Description A clickjacking issue exists in the Widget: Gtk component. Clickjacking is a technique where an attacker tricks a user into clicking something different from what the...

PT-2026-49688

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 152 Thunderbird versions prior to 152 Description A denial-of-service issue exists within the Audio/Video: Playback component. Recommendations Update to version 152 for Firefox. Update to version 152 for Thunderbird...

Mozilla Firefox < 152.0

The version of Firefox installed on the remote Windows host is prior to 152.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-57 advisory. - Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152...

[SECURITY] Fedora 44 Update: firefox-151.0.3-1.fc44

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability...

CVE-2026-8948

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Same-origin policy bypass in the DOM: Networking component...

CVE-2026-8091

Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, Thunderbird 140.10.1, and Firefox ESR 115.35.2...

CVE-2026-8963

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Spoofing issue in the Web Speech component...

CVE-2026-8945

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape in Firefox and Firefox Focus for Android...

CVE-2026-10701

CVE-2026-10701 relates to an Incorrect boundary condition in Firefox’s Graphics: Text component. Connected sources confirm this is addressed by the Firefox 151.0.3 update, fixing the vulnerability. The issue is described as a boundary condition problem within the Graphics: Text component and is i...

firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these...

OPENSUSE-SU-2026:10863-1 MozillaFirefox-151.0.1-1.1 on GA media

These are all security issues fixed in the MozillaFirefox-151.0.1-1.1 package on the GA media of openSUSE Tumbleweed...

firefox: Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some ...