Filtered by vendor Mozilla
Subscribe
Total
3978 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2025-6432 | 1 Mozilla | 1 Firefox | 2026-09-30 | N/A | 8.6 HIGH |
| When Multi-Account Containers was enabled, DNS requests could have bypassed a SOCKS proxy when the domain name was invalid or the SOCKS proxy was not responding. This vulnerability was fixed in Firefox 140 and Thunderbird 140. | |||||
| CVE-2025-3032 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-09-30 | N/A | 7.4 HIGH |
| Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks. This vulnerability was fixed in Firefox 137 and Thunderbird 137. | |||||
| CVE-2025-8044 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-09-30 | N/A | 9.8 CRITICAL |
| Memory safety bugs present in Firefox 140 and Thunderbird 140. 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 141 and Thunderbird 141. | |||||
| CVE-2025-6436 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-09-30 | N/A | 8.1 HIGH |
| Memory safety bugs present in Firefox 139 and Thunderbird 139. 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 140 and Thunderbird 140. | |||||
| CVE-2025-9183 | 1 Mozilla | 1 Firefox | 2026-09-30 | N/A | 6.5 MEDIUM |
| Spoofing issue in the Address Bar component. This vulnerability was fixed in Firefox 142 and Firefox ESR 140.2. | |||||
| CVE-2025-4918 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-09-30 | N/A | 9.8 CRITICAL |
| An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. This vulnerability was fixed in Firefox 138.0.4, Firefox ESR 128.10.1, Firefox ESR 115.23.1, Thunderbird 128.10.2, and Thunderbird 138.0.2. | |||||
| CVE-2025-4089 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-09-30 | N/A | 5.1 MEDIUM |
| Due to insufficient escaping of special characters in the "copy as cURL" feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. This vulnerability was fixed in Firefox 138 and Thunderbird 138. | |||||
| CVE-2025-6427 | 1 Mozilla | 1 Firefox | 2026-09-30 | N/A | 9.1 CRITICAL |
| An attacker was able to bypass the `connect-src` directive of a Content Security Policy by manipulating subdocuments. This would have also hidden the connections from the Network tab in Devtools. This vulnerability was fixed in Firefox 140 and Thunderbird 140. | |||||
| CVE-2025-8043 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-09-30 | N/A | 9.8 CRITICAL |
| Focus incorrectly truncated URLs towards the beginning instead of around the origin. This vulnerability was fixed in Firefox 141. | |||||
| CVE-2025-9182 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-09-30 | N/A | 7.5 HIGH |
| Denial-of-service due to out-of-memory in the Graphics: WebRender component. This vulnerability was fixed in Firefox 142, Firefox ESR 140.2, Thunderbird 142, and Thunderbird 140.2. | |||||
| CVE-2025-4088 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-09-30 | N/A | 6.5 MEDIUM |
| A security vulnerability in Thunderbird allowed malicious sites to use redirects to send credentialed requests to arbitrary endpoints on any site that had invoked the Storage Access API. This enabled potential Cross-Site Request Forgery attacks across origins. This vulnerability was fixed in Firefox 138 and Thunderbird 138. | |||||
| CVE-2025-8041 | 2 Google, Mozilla | 2 Android, Firefox | 2026-09-30 | N/A | 5.3 MEDIUM |
| In the address bar, Firefox for Android truncated the display of URLs from the end instead of prioritizing the origin. This vulnerability was fixed in Firefox 141. | |||||
| CVE-2025-5272 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-09-30 | N/A | 7.3 HIGH |
| Memory safety bugs present in Firefox 138 and Thunderbird 138. 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 139 and Thunderbird 139. | |||||
| CVE-2025-6431 | 2 Google, Mozilla | 2 Android, Firefox | 2026-09-30 | N/A | 6.5 MEDIUM |
| When a link can be opened in an external application, Firefox for Android will, by default, prompt the user before doing so. An attacker could have bypassed this prompt, potentially exposing the user to security vulnerabilities or privacy leaks in external applications. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.*. This vulnerability was fixed in Firefox 140. | |||||
| CVE-2025-8042 | 2 Google, Mozilla | 2 Android, Firefox | 2026-09-30 | N/A | 9.8 CRITICAL |
| Firefox for Android allowed a sandboxed iframe without the `allow-downloads` attribute to start downloads. This vulnerability was fixed in Firefox 141. | |||||
| CVE-2025-4092 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-09-30 | N/A | 6.5 MEDIUM |
| Memory safety bugs present in Firefox 137 and Thunderbird 137. 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 138 and Thunderbird 138. | |||||
| CVE-2025-9186 | 1 Mozilla | 1 Firefox | 2026-09-30 | N/A | 6.5 MEDIUM |
| Spoofing issue in the Address Bar component of Firefox Focus for Android. This vulnerability was fixed in Firefox 142. | |||||
| CVE-2025-4919 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-09-30 | N/A | 8.8 HIGH |
| An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability was fixed in Firefox 138.0.4, Firefox ESR 128.10.1, Firefox ESR 115.23.1, Thunderbird 128.10.2, and Thunderbird 138.0.2. | |||||
| CVE-2025-4090 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-09-30 | N/A | 5.3 MEDIUM |
| A vulnerability existed in Thunderbird for Android where potentially sensitive library locations were logged via Logcat. This vulnerability was fixed in Firefox 138 and Thunderbird 138. | |||||
| CVE-2025-55031 | 1 Mozilla | 2 Firefox, Firefox Focus | 2026-09-30 | N/A | 9.8 CRITICAL |
| Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport. An attacker within Bluetooth range could have used this to trick the user into using their passkey to log the attacker's computer into the target account. This vulnerability was fixed in Firefox for iOS 142 and Focus for iOS 142. | |||||