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Thunderbird

thunderbird

Vendor: Mozilla • 1,729 CVEs

CVEs (1,729)

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1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Jan 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Jan 13, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Jan 13, 2026
N/A· v4
8.0 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Jan 13, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Dec 9, 2025
N/A· v4
8.1 HIGH· v3
N/A· v2
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...Show more
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.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Dec 9, 2025
N/A· v4
7.3 HIGH· v3
N/A· v2
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....Show more
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.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Dec 9, 2025
N/A· v4
6.5 MEDIUM· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Dec 9, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Dec 9, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Dec 9, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Dec 9, 2025
N/A· v4
7.5 HIGH· v3
N/A· v2
Spoofing issue in the Downloads Panel component. This vulnerability was fixed in Firefox 146, Thunderbird 146, Firefox ESR 140.7, and Thunderbird 140.7.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Dec 9, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Use-after-free in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 146 and Thunderbird 146.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Dec 9, 2025
N/A· v4
7.3 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Dec 9, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Dec 9, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Dec 9, 2025
N/A· v4
8.0 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Dec 9, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Oct 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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...Show more
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.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Oct 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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...Show more
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.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Oct 14, 2025
N/A· v4
6.5 MEDIUM· v3
N/A· v2
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.