CVE-2026-12301

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bug fixed in Thunderbird 152...

firefox: thunderbird: Memory safety bug fixed in Thunderbird ESR 140.12

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bug fixed in Thunderbird ESR 140.12...

firefox: thunderbird: Memory safety bug fixed in Thunderbird ESR 140.12

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bug fixed in Thunderbird ESR 140.12...

firefox: thunderbird: Memory safety bug fixed in Thunderbird ESR 140.12

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bug fixed in Thunderbird ESR 140.12...

firefox: thunderbird: Memory safety bug fixed in Thunderbird ESR 140.12

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bug fixed in Thunderbird ESR 140.12...

firefox: thunderbird: Memory safety bug fixed in Thunderbird ESR 140.12

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bug fixed in Thunderbird ESR 140.12...

firefox: thunderbird: Memory safety bug fixed in Thunderbird ESR 140.12

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bug fixed in Thunderbird ESR 140.12...

Astra Linux – Vulnerability in Thunderbird

An attacker may carry out a DoS attack to prevent a user from sending encrypted emails to a correspondent. If an attacker creates a crafted OpenPGP key with a subkey that has an invalid self-signature, and the Thunderbird user imports the crafted key, then Thunderbird may attempt to use the inval...

Astra Linux – Vulnerability in Firefox and Thunderbird

Memory safety bugs exist in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145, and Thunderbird 145. Some of these bugs exhibited signs of memory corruption, and we assume that with sufficient effort, some of these bugs could have been exploited to execute arbitrary code. This vulnerability wa...

Astra Linux – Vulnerability in Firefox and Thunderbird

When resizing a popup after requesting fullscreen access, the popup does not display the fullscreen notification. This vulnerability affects Firefox 98, Firefox ESR 91.7, and Thunderbird 91.7...

SUSE CVE-2026-12327

Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. 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 fixed in...

[slackware-security] mozilla-thunderbird

New mozilla-thunderbird packages are available for Slackware 15.0 and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/mozilla-thunderbird-140.12.0esr-i686-1slack15.0.txz: Upgraded. This release contains security fixes and improvements. For...

UBUNTU-CVE-2026-12290

Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12...

CVE-2026-12327

CVE-2026-12327 relates to memory safety bugs in Mozilla products: Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151, and Thunderbird 151. Some bugs showed evidence of memory corruption and could potentially be exploited to run arbitrary code. The issue was fixed in Firefox 152, Firefox ESR ...

CVE-2026-12326

CVE-2026-12326 is a Firefox/Thunderbird memory-safety issue affecting Firefox 151 and Thunderbird 151. The available sources indicate memory corruption that could be exploited to run arbitrary code, with a fix delivered in Firefox 152 and Thunderbird 152. The vulnerability details include affecte...

CVE-2026-12292

Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12...

Mozilla Thunderbird < 140.12

The version of Thunderbird installed on the remote macOS or Mac OS X 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,...

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...