CVE-2026-6761

A privilege escalation vulnerability exists in the Networking component of Mozilla Firefox , Firefox ESR , and the Thunderbird email client. The flaw is caused by deficiencies in access control , which could allow a malicious actor to remotely enhance their privileges. The issue has been addresse...

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-2026-6761

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

CVE-2026-6760 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-2026-6759

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

CVE-2026-6758

Use-after-free in the JavaScript: WebAssembly 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-2026-6756 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

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. 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-2026-6752 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-2026-6750 Privilege escalation in the Graphics: WebRender component

Privilege escalation in the Graphics: WebRender 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...

PT-2026-33932

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Firefox ESR versions prior to 115.35 Firefox ESR versions prior to 140.10 Thunderbird versions prior to 150 Thunderbird versions prior to 140.10 Description A use-after-free issue exists in the DOM: Core & HTML...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-6776

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and...

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-2026-33967

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...