6.5
CVE-2026-6763 - Mitigation bypass in the File Handling component
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
6.3
CVE-2026-6762 - Spoofing issue in the DOM: Core & HTML component
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.
8.8
CVE-2026-6761 - Privilege escalation in the Networking component
Privilege escalation in the Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
9.8
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.
7.5
CVE-2026-6759 - Use-after-free in the Widget: Cocoa component
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.
7.5
CVE-2026-6758 - Use-after-free in the JavaScript: WebAssembly component
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
6.3
CVE-2026-6757 - Invalid pointer in the JavaScript: WebAssembly component
Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
7.5
CVE-2026-6756 - Mitigation bypass in Firefox for Android
Mitigation bypass in Firefox for Android. This vulnerability was fixed in Firefox 150.
6.5
CVE-2026-6755 - Mitigation bypass in the DOM: postMessage component
Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
7.5
CVE-2026-6754 - Use-after-free in the JavaScript Engine component
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.