Filtered by vendor Mozilla
Subscriptions
Filtered by product Firefox Esr
Subscriptions
Total
679 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2015-4000 | 13 Apple, Canonical, Debian and 10 more | 31 Iphone Os, Mac Os X, Safari and 28 more | 2026-05-27 | 3.7 Low |
| The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_EXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHE_EXPORT and then rewriting a ServerHello with DHE_EXPORT replaced by DHE, aka the "Logjam" issue. | ||||
| CVE-2026-5731 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-05-26 | 9.8 Critical |
| Memory safety bugs present in Firefox ESR 115.34.0, 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 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1. | ||||
| CVE-2026-4698 | 1 Mozilla | 2 Firefox, Firefox Esr | 2026-05-22 | 8.8 High |
| JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | ||||
| CVE-2024-4367 | 4 Debian, Mozilla, Open-xchange and 1 more | 10 Debian Linux, Firefox, Firefox Esr and 7 more | 2026-05-12 | 5.6 Medium |
| 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-2025-14323 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-22 | 8.8 High |
| 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. | ||||
| CVE-2026-2781 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-22 | 8.8 High |
| Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35. | ||||
| CVE-2025-8027 | 2 Mozilla, Redhat | 4 Firefox, Firefox Esr, Thunderbird and 1 more | 2026-04-22 | 6.5 Medium |
| On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1. | ||||
| CVE-2026-2791 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-21 | 9.8 Critical |
| Mitigation bypass in the Networking: Cache component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | ||||
| CVE-2026-2788 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-21 | 9.8 Critical |
| Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | ||||
| CVE-2025-6426 | 2 Apple, Mozilla | 3 Macos, Firefox, Firefox Esr | 2026-04-20 | 8.8 High |
| The executable file warning did not warn users before opening files with the `terminal` extension. *This bug only affects Firefox for macOS. Other versions of Firefox are unaffected.*. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12. | ||||
| CVE-2025-8036 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-20 | 8.1 High |
| Thunderbird cached CORS preflight responses across IP address changes. This allowed circumventing CORS with DNS rebinding. This vulnerability was fixed in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1. | ||||
| CVE-2025-8034 | 2 Mozilla, Redhat | 4 Firefox, Firefox Esr, Thunderbird and 1 more | 2026-04-20 | 8.8 High |
| Memory safety bugs present in Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, 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, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1. | ||||
| CVE-2025-13012 | 1 Mozilla | 2 Firefox, Firefox Esr | 2026-04-20 | 7.5 High |
| Race condition in the Graphics component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Firefox ESR 115.30, Thunderbird 145, and Thunderbird 140.5. | ||||
| CVE-2025-13017 | 1 Mozilla | 2 Firefox, Firefox Esr | 2026-04-20 | 8.1 High |
| Same-origin policy bypass in the DOM: Notifications component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5. | ||||
| CVE-2025-13019 | 1 Mozilla | 2 Firefox, Firefox Esr | 2026-04-20 | 8.1 High |
| Same-origin policy bypass in the DOM: Workers component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5. | ||||
| CVE-2025-13020 | 1 Mozilla | 2 Firefox, Firefox Esr | 2026-04-20 | 8.8 High |
| Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5. | ||||
| CVE-2025-14321 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-20 | 9.8 Critical |
| 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. | ||||
| CVE-2025-14325 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-20 | 7.3 High |
| 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. | ||||
| CVE-2025-14328 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-20 | 8.8 High |
| Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. | ||||
| CVE-2025-14330 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-20 | 9.8 Critical |
| 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. | ||||