CVE-2026-4707

Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

CVE-2026-4699

CVE-2026-4699: Incorrect boundary conditions in Firefox/Thunderbird Layout: Text and Fonts. Affected products include Firefox (pre-149, ESR 115.34/140.9) and Thunderbird (pre-149/140.9). A fix is available in Firefox 149, ESR 115.34, 140.9 and Thunderbird 149, 140.9. Upgrade to the patched releas...

Mozilla Firefox ESR < 115.34

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 115.34. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-21 advisory. - JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox 149,...

SUSE: Security Advisory (SUSE-SU-2026:20582-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE SLED15 / SLES15 / openSUSE 15 Security Update : MozillaFirefox (SUSE-SU-2026:0611-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:0611-1 advisory. - Update to Firefox 140.7.1 ESR - CVE-2026-2447: Fixed a heap buffer overflow in libvpx. bsc1258231 Tenab...

firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corrupti...

UBUNTU-CVE-2026-2773

Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8...

CVE-2026-0879 Sandbox escape due to incorrect boundary conditions in the Graphics component

Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0878

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

PT-2026-2642

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 147 Firefox ESR versions prior to 115.32 Firefox ESR versions prior to 140.7 Description A flaw exists due to an integer overflow within the Graphics component, potentially allowing for a sandbox escape. Recommendatio...

firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs. 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...

PT-2026-27416

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 undefined behavior exists within the WebRTC: Signaling component. This issue impacts the...

PT-2026-21706

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 115.33 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description An issue exists due to incorrect boundary conditions withi...

PT-2026-21703

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 115.33 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description A use-after-free issue exists in the DOM: Bindings WebIDL...

PT-2026-27395

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 A use-after-free issue exists in the Layout: Text and Font...

Mozilla Firefox ESR < 31.5.2

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 31.5.2. It is, therefore, affected by a vulnerability as referenced in the mfsa2015-29 advisory. - Pwn2Own asm.js exploitCVE-2015-0817 CVE-2015-0817 Note that Nessus has not tested for this issue but has instead...

Debian dla-4401 : firefox-esr - security update

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4401 advisory. - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4401-1 [email protected]...

firefox: thunderbird: Mitigation bypass in the DOM: Core & HTML component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Mitigation bypass in the DOM: Core & HTML component...

Mozilla Firefox 安全漏洞

Mozilla Firefox is an open source web browser from the Mozilla Foundation in the United States. A security vulnerability exists in Mozilla Firefox versions prior to 146 and Firefox ESR versions prior to 140.6, which stems from a post-release reuse of a WebRTC component...

Mozilla Firefox ESR < 45.7

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 45.7. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2017-02 advisory. - A use-after-free vulnerability in the Media Decoder when working with media files when some events are...