CVE-2026-2780 Privilege escalation in the Netmonitor component

Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8...

CVE-2026-2776

CVE-2026-2776 involves a sandbox escape due to incorrect boundary conditions in the Telemetry component of External Software. Impacted products are Mozilla Firefox (including Firefox 148 and ESR releases 115.33 and 140.8) and Thunderbird (both 148 and 140.8). The underlying issue is a boundary-co...

CVE-2026-2774

CVE-2026-2774 is an integer overflow in the Firefox Audio/Video component. Public sources indicate Firefox/ESR updates (Firefox 148, ESR 115.33, ESR 140.8) fix the flaw; affected products include Firefox and Thunderbird per accompanying advisories. The issue is rated high/critical by CVSS sources...

EUVD-2026-8493

Undefined behavior in the DOM: Core & HTML component. This vulnerability affects Firefox 148, Firefox ESR 115.33, and Firefox ESR 140.8...

CVE-2026-2761

CVE-2026-2761 is a sandbox-escape vulnerability in the Graphics: WebRender component of Mozilla Firefox/Thunderbird. The issue is fixed in Firefox 148, Firefox ESR 115.33 and 140.8, as well as Thunderbird 148 and Thunderbird 140.8 per the provided advisories. Connected documents confirm this exac...

CVE-2026-2761 Sandbox escape in the Graphics: WebRender component

Sandbox escape in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8...

EUVD-2026-8480

Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox 148, Firefox ESR 115.33, and Firefox ESR 140.8...

Mozilla多款产品 安全漏洞

Mozilla Firefox, among others, are products of the American Mozilla Foundation. Mozilla Firefox is an open-source web browser. Mozilla Firefox ESR is a extended support version of Firefox the web browser. Mozilla Thunderbird is an email client software that emerged independently from the Mozilla...

Security Vulnerabilities fixed in Firefox ESR 140.8 — Mozilla

Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. 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. Memory safety bugs present in...

Mozilla Firefox ESR < 140.7.1

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 140.7.1. It is, therefore, affected by a vulnerability as referenced in the mfsa2026-10 advisory. - Heap buffer overflow in libvpx. This vulnerability affects Firefox 147.0.4, Firefox ESR 140.7.1, Firefox ESR...

firefox: thunderbird: Incorrect boundary conditions in the Graphics component

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

Oracle Linux 10 : firefox (ELSA-2026-2271)

The remote Oracle Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-2271 advisory. 140.7.0-1.0.1 - Fix firefox-oracle-default-prefs.js for new nss Orabug: 37079773 - Add firefox-oracle-default-prefs.js and remove the corresponding Re...

firefox: Spoofing issue in the Downloads Panel component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Spoofing issue in the Downloads Panel component...

firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147

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 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume th...

firefox: thunderbird: Incorrect boundary conditions in the Graphics component

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

ROS-20260129-73-0052

A vulnerability in the Canvas and WebGL interfaces of Mozilla Firefox, Firefox ESR and Thunderbird email client is related to insufficient checking for unusual or exceptional states. Exploitation of the vulnerability could allow an attacker acting remotely to bypass the sandbox protection mechani...

firefox: thunderbird: Incorrect boundary conditions in the Graphics component

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

firefox: Spoofing issue in the Downloads Panel component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Spoofing issue in the Downloads Panel component...

firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147

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 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume th...

firefox: thunderbird: Use-after-free in the IPC component

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