CVE Intelligence

Mozilla Thunderbird vulnerabilities

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Published CVEs affecting Mozilla Thunderbird: 524 record(s), with affected versions and fixes.
cpe:2.3:a:mozilla:thunderbird

CVE-2026-0884 Critical · 9.8 CWE-416 Jan 13, 2026
Use-after-free in the JavaScript Engine component
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
CVE-2026-0883 Medium · 5.3 CWE-200 Jan 13, 2026
Information disclosure in the Networking component
Information disclosure in the Networking component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
CVE-2026-0882 High · 8.8 CWE-416 Jan 13, 2026
Use-after-free in the IPC component
Use-after-free in the IPC component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
CVE-2026-0881 Critical · 10.0 CWE-284 Jan 13, 2026
Sandbox escape in the Messaging System component
Sandbox escape in the Messaging System component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.
CVE-2026-0880 High · 8.8 CWE-190 Jan 13, 2026
Sandbox escape due to integer overflow in the Graphics component
Sandbox escape due to integer overflow in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
CVE-2026-0879 Critical · 9.8 CWE-119 Jan 13, 2026
Sandbox escape due to incorrect boundary conditions in the Graphics component
Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
CVE-2026-0878 High · 8.0 CWE-20 Jan 13, 2026
Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component
Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
CVE-2026-0877 High · 8.1 CWE-693 Jan 13, 2026
Mitigation bypass in the DOM: Security component
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
CVE-2025-14333 High · 8.1 CWE-787 Dec 9, 2025
Memory safety bugs fixed in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146
Memory safety bugs present in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145 and Thunderbird 145. 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 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-14332 High · 7.3 CWE-787 Dec 9, 2025
Memory safety bugs fixed in Firefox 146 and Thunderbird 146
Memory safety bugs present in Firefox 145 and Thunderbird 145. 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 146 and Thunderbird 146.
CVE-2025-14331 Medium · 6.5 CWE-346 Dec 9, 2025
Same-origin policy bypass in the Request Handling component
Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-14330 Critical · 9.8 CWE-119 Dec 9, 2025
JIT miscompilation in the JavaScript Engine: JIT component
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-14329 High · 8.8 Dec 9, 2025
Privilege escalation in the Netmonitor component
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-14328 High · 8.8 Dec 9, 2025
Privilege escalation in the Netmonitor component
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-14327 High · 7.5 CWE-290 Dec 9, 2025
Spoofing issue in the Downloads Panel component
Spoofing issue in the Downloads Panel component. This vulnerability was fixed in Firefox 146, Thunderbird 146, Firefox ESR 140.7, and Thunderbird 140.7.
CVE-2025-14326 Critical · 9.8 CWE-416 Dec 9, 2025
Use-after-free in the Audio/Video: GMP component
Use-after-free in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 146 and Thunderbird 146.
CVE-2025-14325 High · 7.3 CWE-843 Dec 9, 2025
JIT miscompilation in the JavaScript Engine: JIT component
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-14324 Critical · 9.8 CWE-94 Dec 9, 2025
JIT miscompilation in the JavaScript Engine: JIT component
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-14323 High · 8.8 Dec 9, 2025
Privilege escalation in the DOM: Notifications component
Privilege escalation in the DOM: Notifications component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-14322 High · 8.0 CWE-754 Dec 9, 2025
Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component
Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-14321 Critical · 9.8 CWE-416 Dec 9, 2025
Use-after-free in the WebRTC: Signaling component
Use-after-free in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-11721 Critical · 9.8 CWE-119 Oct 14, 2025
Memory safety bug fixed in Firefox 144 and Thunderbird 144
Memory safety bug present in Firefox 143 and Thunderbird 143. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 144 and Thunderbird 144.
CVE-2025-11719 Critical · 9.8 CWE-416 Oct 14, 2025
Use-after-free caused by the native messaging web extension API on Windows
Starting in Thunderbird 143, the use of the native messaging API by web extensions on Windows could lead to crashes caused by use-after-free memory corruption. This vulnerability was fixed in Firefox 144 and Thunderbird 144.
CVE-2025-11716 Medium · 6.5 CWE-284 Oct 14, 2025
Sandboxed iframes allowed links to open in external apps (Android only)
Links in a sandboxed iframe could open an external app on Android without the required "allow-" permission. This vulnerability was fixed in Firefox 144 and Thunderbird 144.
CVE-2025-11715 High · 8.8 CWE-119 Oct 14, 2025
Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144
Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. 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 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.