CVE-2026-0877 Mitigation bypass in the DOM: Security component

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

PT-2026-2644

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 use-after-free issue exists in the IPC component. This can potentially lead to undesirable behavior. Recommendations Update...

PT-2026-2646

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 147 Firefox ESR versions prior to 140.7 Description A use-after-free issue exists in the JavaScript Engine component. This can potentially allow for unexpected behavior or code execution. Recommendations Update Firefo...

PT-2026-2652

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 147 Firefox ESR versions prior to 140.7 Description A spoofing issue exists in the DOM Copy, Paste, and Drag & Drop components. The issue involves potential manipulation within these components, allowing for spoofing...

Mozilla Firefox和Mozilla Firefox ESR 安全漏洞

Mozilla Firefox and Mozilla Firefox ESR are both products of the Mozilla Foundation, U.S.A. Mozilla Firefox is an open source web browser.Mozilla Firefox ESR is an extended support version of Firefox web browser. A security vulnerability exists in Mozilla Firefox versions prior to 147 and Mozilla...

Mozilla Firefox和Mozilla Firefox ESR 安全漏洞

Mozilla Firefox is an open source web browser from the Mozilla Foundation, USA.Mozilla Firefox ESR is an extended support version of Firefox web browser from the Mozilla Foundation, USA. A code execution vulnerability exists in Mozilla Firefox and Mozilla Firefox ESR due to a use-after-release in...

PT-2026-2645

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 147 Firefox ESR versions prior to 140.7 Description An information disclosure issue exists in the Networking component of the software. Recommendations Update Firefox to version 147 or later. Update Firefox ESR to...

Security Vulnerabilities fixed in Thunderbird 147 — Mozilla

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 that with enough effort some of these could have been exploited to run arbitrary code. Memory safety bugs present in...

Mozilla Firefox和Mozilla Firefox ESR 安全漏洞

Mozilla Firefox is an open source web browser from the Mozilla Foundation.Mozilla Firefox ESR is an extended support version of Firefox web browser from the Mozilla Foundation.Mozilla Thunderbird is a suite of e-mail client software from the Mozilla Foundation that is separate from the Mozilla...

PT-2026-2653

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 147 Thunderbird versions prior to 147 Firefox ESR versions prior to 140.7 Thunderbird ESR versions prior to 140.7 Description The software contains memory safety bugs that could potentially lead to arbitrary code...

PT-2026-2649

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 147 Firefox ESR versions prior to 140.7 Description A clickjacking issue exists, leading to information disclosure within the PDF Viewer component. The issue allows unauthorized access to sensitive information...

CVE-2025-5270 vulnerabilities

Vulnerabilities for packages: firefox, firefox-esr...

firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: JIT miscompilation in the JavaScript Engine: JIT component...

firefox: thunderbird: Privilege escalation in the DOM: Notifications component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation in the DOM: Notifications component...

firefox: thunderbird: Same-origin policy bypass in the Request Handling component

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

firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: JIT miscompilation in the JavaScript Engine: JIT component...

firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: JIT miscompilation in the JavaScript Engine: JIT component...

firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: JIT miscompilation in the JavaScript Engine: JIT component...

firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: JIT miscompilation in the JavaScript Engine: JIT component...

firefox: thunderbird: Privilege escalation in the Netmonitor component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation in the Netmonitor component...