Security Vulnerabilities fixed in Firefox 150.0.1 — Mozilla

Memory safety bugs present in Firefox ESR 115.35.0, Firefox ESR 140.10.0 and Firefox 150.0.0. 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 Firefox ESR...

OPENSUSE-SU-2026:20621-1 Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: Update to Firefox Extended Support Release 140.10.0 ESR. - MFSA 2026-32 bsc1262230: CVE-2026-6746: Use-after-free in the DOM: Core & HTML component CVE-2026-6747: Use-after-free in the WebRTC component CVE-2026-6748: Uninitialized memory ...

[SECURITY] [DSA 6225-1] firefox-esr security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6225-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff April 22, 2026 https://www.debian.org/security/faq -...

SUSE CVE-2026-6765

Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

Debian dsa-6225 : firefox-esr - security update

The remote Debian 12 / 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6225 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6225-1 [email protected]...

EUVD-2026-24092

Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10...

CVE-2026-6763

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

CVE-2026-6746

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

CVE-2026-6786

Memory safety bugs present in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. 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...

CVE-2026-6785

Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. 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...

CVE-2026-6785

Memory safety bugs in Mozilla Firefox and Thunderbird allow for memory corruption , which could potentially be exploited to execute arbitrary code with sufficient effort. The affected versions include Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149, and Thunderbird 149. ...

CVE-2026-6769 Privilege escalation in the Debugger component

Privilege escalation in the Debugger component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

CVE-2026-6766 Incorrect boundary conditions in the Libraries component in NSS

Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

CVE-2026-6765 Information disclosure in the Form Autofill component

Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

CVE-2026-6763

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

CVE-2026-6752

The WebRTC component in Mozilla Firefox , Firefox ESR , and the Thunderbird email client is vulnerable to incorrect boundary conditions . This flaw allows an attacker to compromise the confidentiality, integrity, and accessibility of protected information. The vulnerability has been addressed in ...

CVE-2026-6749

Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

CVE-2026-6747 Use-after-free in the WebRTC component

Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

CVE-2026-6747

A Use-after-free vulnerability exists in the WebRTC component of Mozilla Firefox , Firefox ESR , and the Thunderbird email client. This flaw allows a malicious actor to use memory after it has been freed, which could lead to a remote service failure or service interruptions. The vulnerability has...

Mozilla’s various products have security vulnerabilities

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...