Mozilla Thunderbird < 140.12

The version of Thunderbird installed on the remote Windows host is prior to 140.12. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-61 advisory. - Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox E...

Astra Linux – Vulnerability in Firefox and Thunderbird

If the Content Security Policy blocks frame navigation, the full destination of a redirect served within the frame is reported in the violation report; instead of just the original frame URI. This could be used to disclose sensitive information contained in such URIs. This vulnerability affects...

Astra Linux – Vulnerability in Firefox and Thunderbird

A type check was missing when handling fonts in PDF.js, which would allow arbitrary JavaScript execution within the PDF.js context. This vulnerability affects Firefox 126, Firefox ESR 115.11, and Thunderbird 115.11...

Astra Linux – Vulnerability in Firefox and Thunderbird

Ports that were written as integer overflows above the bounds of a 16-bit integer could potentially bypass port blocking restrictions when used in the Alt-Svc header. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

Astra Linux – Vulnerability in Firefox and Thunderbird

GetBoundName might return the wrong version of an object when JIT optimizations are applied. This vulnerability affects Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10...

Astra Linux – Vulnerability in Firefox and Thunderbird

A Linux user who opened the print preview dialog box could have caused the browser to crash. This vulnerability affects Firefox 122, Firefox ESR 115.7, and Thunderbird 115.7...

Astra Linux – Vulnerability in Firefox and Thunderbird

JIT compilation errors in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6...

Astra Linux – Vulnerability in Firefox and Thunderbird

When opening Diagcab files, Firefox did not warn the user that these files might contain malicious code. This vulnerability affects Firefox 115, Firefox ESR 102.13, and Thunderbird 102.13...

Astra Linux – Vulnerability in Firefox and Thunderbird

Mozilla developers and community members Nika Layzell, Andrew McCreight, Gabriele Svelto, and the Mozilla Fuzzing Team reported memory safety bugs in Thunderbird 91.7. Some of these bugs exhibited signs of memory corruption, and we assume that with sufficient effort, some of these bugs could have...

Astra Linux – Vulnerability in Firefox

The z-order of browser windows can be manipulated to hide the fullscreen notifications. This could potentially be used to carry out a spoofing attack. This vulnerability has been fixed in Firefox 135 and Thunderbird 135...

Astra Linux – Vulnerability in Firefox and Thunderbird

Memory safety bugs exist in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141, and Thunderbird 141. Some of these bugs exhibited signs of memory corruption, and we assume that with sufficient effort, some of these bugs could have...

Astra Linux – Vulnerability in Firefox and Thunderbird

In several cases, browser prompts might have been obscured by pop-ups controlled by content. This could lead to potential user confusion and spoofing attacks. This vulnerability affects Firefox 113, Firefox ESR 102.11, and Thunderbird 102.11...

Astra Linux – Vulnerability in Firefox and Thunderbird

Mozilla developers and community members Gabriele Svelto, Andrew Osmond, Emily McDonough, Sebastian Hengst, Andrew McCreight, and the Mozilla Fuzzing Team reported memory safety bugs in Firefox 112 and Firefox ESR 102.10. Some of these bugs exhibited signs of memory corruption, and we assume that...

CVE-2026-5734

Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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. This vulnerability was...

SUSE CVE-2026-4689

Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

SUSE CVE-2026-4691

Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

SUSE CVE-2026-4692

Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

SUSE CVE-2026-4705

Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

SUSE CVE-2026-4715

Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

SUSE CVE-2026-4722

Privilege escalation in the IPC component. This vulnerability was fixed in Firefox 149 and Thunderbird 149...