Vulnerabilities (CVE)

Filtered by vendor Mozilla Subscribe
Filtered by product Thunderbird
Total 2070 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-25746 1 Mozilla 2 Firefox Esr, Thunderbird 2026-10-23 N/A 8.8 HIGH
Memory safety bugs present in Firefox ESR 102.7. 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 affects Thunderbird < 102.8 and Firefox ESR < 102.8.
CVE-2023-37207 2 Debian, Mozilla 4 Debian Linux, Firefox, Firefox Esr and 1 more 2026-10-23 N/A 6.5 MEDIUM
A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
CVE-2023-29539 1 Mozilla 5 Firefox, Firefox Esr, Firefox Mobile and 2 more 2026-10-23 N/A 8.8 HIGH
When handling the filename directive in the Content-Disposition header, the filename would be truncated if the filename contained a NULL character. This could have led to reflected file download attacks potentially tricking users to install malware. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.
CVE-2023-25751 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-10-23 N/A 6.5 MEDIUM
Sometimes, when invalidating JIT code while following an iterator, the newly generated code could be overwritten incorrectly. This could lead to a potentially exploitable crash. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.
CVE-2023-3600 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-10-23 N/A 8.8 HIGH
During the worker lifecycle, a use-after-free condition could have occurred, which could have led to a potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and Thunderbird < 115.0.1.
CVE-2026-5735 1 Mozilla 2 Firefox, Thunderbird 2026-10-23 N/A 9.8 CRITICAL
Memory safety bugs present in 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 and Thunderbird 149.0.2.
CVE-2023-32213 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-10-23 N/A 8.8 HIGH
When reading a file, an uninitialized value could have been used as read limit. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.
CVE-2025-10532 1 Mozilla 2 Firefox, Thunderbird 2026-10-23 N/A 6.5 MEDIUM
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.
CVE-2023-23598 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-10-23 N/A 6.5 MEDIUM
Due to the Firefox GTK wrapper code's use of text/plain for drag data and GTK treating all text/plain MIMEs containing file URLs as being dragged a website could arbitrarily read a file via a call to `DataTransfer.setData`. This vulnerability affects Firefox < 109, Firefox ESR < 102.7, and Thunderbird < 102.7.
CVE-2026-5734 1 Mozilla 2 Firefox, Thunderbird 2026-10-23 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-2023-28162 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-10-23 N/A 8.8 HIGH
While implementing AudioWorklets, some code may have casted one type to another, invalid, dynamic type. This could have led to a potentially exploitable crash. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.
CVE-2025-11710 1 Mozilla 2 Firefox, Thunderbird 2026-10-23 N/A 9.8 CRITICAL
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.
CVE-2025-11711 1 Mozilla 2 Firefox, Thunderbird 2026-10-23 N/A 6.5 MEDIUM
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.
CVE-2025-10527 1 Mozilla 2 Firefox, Thunderbird 2026-10-23 N/A 7.1 HIGH
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.
CVE-2025-11714 1 Mozilla 2 Firefox, Thunderbird 2026-10-23 N/A 8.8 HIGH
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.
CVE-2025-11709 1 Mozilla 2 Firefox, Thunderbird 2026-10-23 N/A 9.8 CRITICAL
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.
CVE-2025-10528 1 Mozilla 2 Firefox, Thunderbird 2026-10-23 N/A 7.3 HIGH
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.
CVE-2025-10529 1 Mozilla 2 Firefox, Thunderbird 2026-10-23 N/A 6.5 MEDIUM
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.
CVE-2025-10533 1 Mozilla 2 Firefox, Thunderbird 2026-10-23 N/A 8.8 HIGH
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.
CVE-2025-10537 1 Mozilla 2 Firefox, Thunderbird 2026-10-23 N/A 8.8 HIGH
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.