Vulnerabilities (CVE)

Filtered by vendor Mozilla Subscribe
Total 3295 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-6858 2 Debian, Mozilla 4 Debian Linux, Firefox, Firefox Esr and 1 more 2025-05-07 N/A 8.8 HIGH
Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
CVE-2024-1557 1 Mozilla 1 Firefox 2025-05-06 N/A N/A
Memory safety bugs present in Firefox 122. 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 Firefox < 123.
CVE-2023-0767 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2025-05-05 N/A 8.8 HIGH
An attacker could construct a PKCS 12 cert bundle in such a way that could allow for arbitrary memory writes via PKCS 12 Safe Bag attributes being mishandled. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
CVE-2023-34417 1 Mozilla 1 Firefox 2025-05-05 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox 113. 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 Firefox < 114.
CVE-2023-5174 2 Microsoft, Mozilla 4 Windows, Firefox, Firefox Esr and 1 more 2025-05-05 N/A 9.8 CRITICAL
If Windows failed to duplicate a handle during process creation, the sandbox code may have inadvertently freed a pointer twice, resulting in a use-after-free and a potentially exploitable crash. *This bug only affects Firefox on Windows when run in non-standard configurations (such as using `runas`). Other operating systems are unaffected.* This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.
CVE-2023-5168 2 Microsoft, Mozilla 4 Windows, Firefox, Firefox Esr and 1 more 2025-05-01 N/A 9.8 CRITICAL
A compromised content process could have provided malicious data to `FilterNodeD2D1` resulting in an out-of-bounds write, leading to a potentially exploitable crash in a privileged process. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.
CVE-2023-5175 1 Mozilla 1 Firefox 2025-05-01 N/A 9.8 CRITICAL
During process shutdown, it was possible that an `ImageBitmap` was created that would later be used after being freed from a different codepath, leading to a potentially exploitable crash. This vulnerability affects Firefox < 118.
CVE-2025-2857 1 Mozilla 1 Firefox 2025-05-01 N/A N/A
Following the recent Chrome sandbox escape (CVE-2025-2783), various Firefox developers identified a similar pattern in our IPC code. A compromised child process could cause the parent process to return an unintentionally powerful handle, leading to a sandbox escape. The original vulnerability was being exploited in the wild. *This only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 136.0.4, Firefox ESR < 128.8.1, and Firefox ESR < 115.21.1.
CVE-2023-5176 2 Debian, Mozilla 4 Debian Linux, Firefox, Firefox Esr and 1 more 2025-05-01 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. 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 Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.
CVE-2023-5172 1 Mozilla 1 Firefox 2025-05-01 N/A 9.8 CRITICAL
A hashtable in the Ion Engine could have been mutated while there was a live interior reference, leading to a potential use-after-free and exploitable crash. This vulnerability affects Firefox < 118.
CVE-2024-3865 1 Mozilla 1 Firefox 2025-05-01 N/A N/A
Memory safety bugs present in Firefox 124. 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 Firefox < 125.
CVE-2024-4367 3 Debian, Mozilla, Open-xchange 4 Debian Linux, Firefox, Thunderbird and 1 more 2025-04-24 N/A 8.8 HIGH
A type check was missing when handling fonts in PDF.js, which would allow arbitrary JavaScript execution in the PDF.js context. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.
CVE-2022-22752 1 Mozilla 1 Firefox 2025-04-18 N/A 8.8 HIGH
Mozilla developers Christian Holler and Jason Kratzer reported memory safety bugs present in Firefox 95. 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 Firefox < 96.
CVE-2022-1802 2 Google, Mozilla 4 Android, Firefox, Firefox Esr and 1 more 2025-04-16 N/A 8.8 HIGH
If an attacker was able to corrupt the methods of an Array object in JavaScript via prototype pollution, they could have achieved execution of attacker-controlled JavaScript code in a privileged context. This vulnerability affects Firefox ESR < 91.9.1, Firefox < 100.0.2, Firefox for Android < 100.3.0, and Thunderbird < 91.9.1.
CVE-2022-22736 1 Mozilla 1 Firefox 2025-04-16 N/A 7.0 HIGH
If Firefox was installed to a world-writable directory, a local privilege escalation could occur when Firefox searched the current directory for system libraries. However the install directory is not world-writable by default.<br>*This bug only affects Firefox for Windows in a non-default installation. Other operating systems are unaffected.*. This vulnerability affects Firefox < 96.
CVE-2021-4127 1 Mozilla 2 Firefox Esr, Thunderbird 2025-04-16 N/A 9.8 CRITICAL
An out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited. This vulnerability affects Thunderbird < 78.9 and Firefox ESR < 78.9.
CVE-2022-1197 1 Mozilla 1 Thunderbird 2025-04-16 N/A 5.4 MEDIUM
When importing a revoked key that specified key compromise as the revocation reason, Thunderbird did not update the existing copy of the key that was not yet revoked, and the existing key was kept as non-revoked. Revocation statements that used another revocation reason, or that didn't specify a revocation reason, were unaffected. This vulnerability affects Thunderbird < 91.8.
CVE-2022-1196 1 Mozilla 2 Firefox Esr, Thunderbird 2025-04-16 N/A 6.5 MEDIUM
After a VR Process is destroyed, a reference to it may have been retained and used, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Thunderbird < 91.8 and Firefox ESR < 91.8.
CVE-2021-4129 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2025-04-16 N/A 9.8 CRITICAL
Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian Holler, and Masayuki Nakano reported memory safety bugs present in Firefox 94. 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 Firefox < 95, Firefox ESR < 91.4.0, and Thunderbird < 91.4.0.
CVE-2022-22744 2 Microsoft, Mozilla 4 Windows, Firefox, Firefox Esr and 1 more 2025-04-16 N/A 8.8 HIGH
The constructed curl command from the "Copy as curl" feature in DevTools was not properly escaped for PowerShell. This could have lead to command injection if pasted into a Powershell prompt.<br>*This bug only affects Thunderbird for Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.