Vulnerabilities (CVE)

Filtered by vendor Mozilla Subscribe
Filtered by product Thunderbird
Total 1745 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2026-6768 1 Mozilla 2 Firefox, Thunderbird 2026-04-22 N/A 9.8 CRITICAL
Mitigation bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
CVE-2026-6766 1 Mozilla 2 Firefox, Thunderbird 2026-04-22 N/A 7.5 HIGH
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-2026-6761 1 Mozilla 2 Firefox, Thunderbird 2026-04-22 N/A 8.8 HIGH
Privilege escalation in the Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
CVE-2026-6758 1 Mozilla 2 Firefox, Thunderbird 2026-04-22 N/A 7.5 HIGH
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
CVE-2026-6754 1 Mozilla 2 Firefox, Thunderbird 2026-04-22 N/A 7.5 HIGH
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.
CVE-2026-6749 1 Mozilla 2 Firefox, Thunderbird 2026-04-22 N/A 7.5 HIGH
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-2026-6748 1 Mozilla 2 Firefox, Thunderbird 2026-04-22 N/A 9.8 CRITICAL
Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
CVE-2026-6747 1 Mozilla 2 Firefox, Thunderbird 2026-04-22 N/A 7.5 HIGH
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-2026-6746 1 Mozilla 2 Firefox, Thunderbird 2026-04-22 N/A 7.5 HIGH
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-2026-5731 1 Mozilla 2 Firefox, Thunderbird 2026-04-16 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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 Firefox 149.0.2, Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.
CVE-2026-5734 1 Mozilla 2 Firefox, Thunderbird 2026-04-13 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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 Firefox 149.0.2, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.
CVE-2026-4729 1 Mozilla 2 Firefox, Thunderbird 2026-04-13 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox 148 and Thunderbird 148. 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 Firefox 149 and Thunderbird 149.
CVE-2026-4728 1 Mozilla 2 Firefox, Thunderbird 2026-04-13 N/A 6.5 MEDIUM
Spoofing issue in the Privacy: Anti-Tracking component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
CVE-2026-4727 1 Mozilla 2 Firefox, Thunderbird 2026-04-13 N/A 7.5 HIGH
Denial-of-service in the Libraries component in NSS. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
CVE-2026-4726 1 Mozilla 2 Firefox, Thunderbird 2026-04-13 N/A 7.5 HIGH
Denial-of-service in the XML component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
CVE-2026-4724 1 Mozilla 2 Firefox, Thunderbird 2026-04-13 N/A 9.1 CRITICAL
Undefined behavior in the Audio/Video component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
CVE-2026-4721 1 Mozilla 2 Firefox, Thunderbird 2026-04-13 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. 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 Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
CVE-2026-4720 1 Mozilla 2 Firefox, Thunderbird 2026-04-13 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. 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 Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
CVE-2026-4718 1 Mozilla 2 Firefox, Thunderbird 2026-04-13 N/A 8.1 HIGH
Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
CVE-2026-4710 1 Mozilla 2 Firefox, Thunderbird 2026-04-13 N/A 9.8 CRITICAL
Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.