CVE-2026-6761

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

CVE-2026-6762

Spoofing issue 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-2026-6760 Mitigation bypass in the Networking: Cookies component

Mitigation bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 150 and Thunderbird 150...

CVE-2026-6758

The Firefox web browser and Thunderbird email client are affected by a use-after-free vulnerability in the JavaScript: WebAssembly component . This flaw occurs when the software attempts to use memory after it has been freed, which could allow a remote attacker to trigger a service failure . The ...

CVE-2026-6758

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150 and Thunderbird 150...

CVE-2026-6756 Mitigation bypass in Firefox for Android

Mitigation bypass in Firefox for Android. This vulnerability was fixed in Firefox 150...

CVE-2026-6755

Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150...

CVE-2026-6752

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

CVE-2026-6753

Mozilla Firefox , Firefox ESR , and the Thunderbird email client are vulnerable to a flaw involving incorrect boundary conditions in the WebRTC component . In some environments, this vulnerability is also associated with the execution of operations outside of the buffer in memory. Exploiting this...

CVE-2026-6752 Incorrect boundary conditions in the WebRTC component

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

CVE-2026-6752 Incorrect boundary conditions in the WebRTC component

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10...

CVE-2026-6753

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, 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...

PT-2026-33946

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Thunderbird versions prior to 150 Description A mitigation bypass exists in the Networking: Cookies component. Recommendations Update to version 150 for Firefox. Update to version 150 for Thunderbird...

PT-2026-33941

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Thunderbird versions prior to 150 Description A mitigation bypass exists in the DOM postMessage component. Recommendations Update to version 150 or later...

PT-2026-33947

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Firefox ESR versions prior to 140.10 Thunderbird versions prior to 150 Thunderbird versions prior to 140.10 Description Privilege escalation exists within the Networking component. Recommendations Update Firefox t...

PT-2026-33952

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Firefox ESR versions prior to 140.10 Thunderbird versions prior to 150 Thunderbird versions prior to 140.10 Description Incorrect boundary conditions exist in the Libraries component in NSS. Recommendations Update...

PT-2026-33939

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Firefox ESR versions prior to 140.10 Thunderbird versions prior to 150 Thunderbird versions prior to 140.10 Description Incorrect boundary conditions exist in the WebRTC component, which is a framework that enable...

PT-2026-33967

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Thunderbird versions prior to 150 Description A denial-of-service issue exists within the Audio/Video: Playback component. Recommendations Update to version 150 for Firefox. Update to version 150 for Thunderbird...

PT-2026-33969

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Thunderbird versions prior to 150 Description An integer overflow occurs due to incorrect boundary conditions in the Audio/Video: Playback component. Recommendations Update Firefox to version 150. Update Thunderbi...