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Thunderbird

thunderbird

Vendor: Mozilla • 1,729 CVEs

CVEs (1,729)

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CVSS
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Oct 14, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
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...Show more
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.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Oct 14, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox ESR 115.28, 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...Show more
Memory safety bugs present in Firefox ESR 115.28, 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 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Oct 14, 2025
N/A· v4
8.1 HIGH· v3
N/A· v2
Insufficient escaping in the “Copy as cURL” feature could have been used to trick a user into executing unexpected code on Windows. This did not affect the application when running on other operating systems. This vulner...Show more
Insufficient escaping in the “Copy as cURL” feature could have been used to trick a user into executing unexpected code on Windows. This did not affect the application when running on other operating systems. This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Oct 14, 2025
N/A· v4
6.1 MEDIUM· v3
N/A· v2
A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a sit...Show more
A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Oct 14, 2025
N/A· v4
6.5 MEDIUM· v3
N/A· v2
There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunder...Show more
There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Oct 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability was fixed in Firefox 144, Firefox ESR...Show more
A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Oct 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140...Show more
A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Oct 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Use-after-free in MediaTrackGraphImpl::GetInstance(). This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Sep 16, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. 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 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. 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 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Sep 16, 2025
N/A· v4
6.2 MEDIUM· v3
N/A· v2
Information disclosure in the Networking: Cache component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Sep 16, 2025
N/A· v4
8.1 HIGH· v3
N/A· v2
Spoofing issue in the Site Permissions component. This vulnerability was fixed in Firefox 143 and Thunderbird 143.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Sep 16, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
Integer overflow in the SVG component. This vulnerability was fixed in Firefox 143, Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Sep 16, 2025
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Incorrect boundary conditions in the JavaScript: GC component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Sep 16, 2025
N/A· v4
5.4 MEDIUM· v3
N/A· v2
Mitigation bypass in the Web Compatibility: Tooling component. This vulnerability was fixed in Firefox 143 and Thunderbird 143.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Sep 16, 2025
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Spoofing issue in the WebAuthn component in Firefox for Android. This vulnerability was fixed in Firefox 143 and Thunderbird 143.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Sep 16, 2025
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Same-origin policy bypass in the Layout component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Sep 16, 2025
N/A· v4
7.3 HIGH· v3
N/A· v2
Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Sep 16, 2025
N/A· v4
7.1 HIGH· v3
N/A· v2
Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Aug 19, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Memory safety bugs present in Firefox 141 and Thunderbird 141. 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 141 and Thunderbird 141. 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 142 and Thunderbird 142.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Aug 19, 2025
N/A· v4
8.1 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corrup...Show more
Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.Show less