Filtered by vendor Mozilla
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Filtered by product Firefox Esr
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Total
679 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2020-15664 | 2 Mozilla, Redhat | 7 Firefox, Firefox Esr, Firefox Mobile and 4 more | 2026-08-19 | 6.5 Medium |
| By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access to the InstallTrigger object which would allow them to prompt the user to install an extension. Combined with user confusion, this could result in an unintended or malicious extension being installed. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox ESR < 68.12, Firefox ESR < 78.2, and Firefox for Android < 80. | ||||
| CVE-2020-15670 | 1 Mozilla | 4 Firefox, Firefox Esr, Firefox Mobile and 1 more | 2026-08-19 | 8.8 High |
| Mozilla developers reported memory safety bugs present in Firefox for Android 79. 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 < 80, Firefox ESR < 78.2, Thunderbird < 78.2, and Firefox for Android < 80. | ||||
| CVE-2023-29533 | 2 Mozilla, Redhat | 10 Firefox, Firefox Esr, Firefox Mobile and 7 more | 2026-08-19 | 4.3 Medium |
| A website could have obscured the fullscreen notification by using a combination of <code>window.open</code>, fullscreen requests, <code>window.name</code> assignments, and <code>setInterval</code> calls. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10. | ||||
| CVE-2023-29539 | 2 Mozilla, Redhat | 10 Firefox, Firefox Esr, Firefox Mobile and 7 more | 2026-08-19 | 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-2023-29535 | 2 Mozilla, Redhat | 10 Firefox, Firefox Esr, Firefox Mobile and 7 more | 2026-08-19 | 6.5 Medium |
| Following a Garbage Collector compaction, weak maps may have been accessed before they were correctly traced. This resulted in memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10. | ||||
| CVE-2023-29536 | 2 Mozilla, Redhat | 10 Firefox, Firefox Esr, Firefox Mobile and 7 more | 2026-08-19 | 8.8 High |
| An attacker could cause the memory manager to incorrectly free a pointer that addresses attacker-controlled memory, resulting in an assertion, memory corruption, or a potentially exploitable crash. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10. | ||||
| CVE-2023-29541 | 2 Mozilla, Redhat | 10 Firefox, Firefox Esr, Firefox Mobile and 7 more | 2026-08-19 | 8.8 High |
| Firefox did not properly handle downloads of files ending in <code>.desktop</code>, which can be interpreted to run attacker-controlled commands. <br>*This bug only affects Firefox for Linux on certain Distributions. Other operating systems are unaffected, and Mozilla is unable to enumerate all affected Linux Distributions.*. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10. | ||||
| CVE-2023-29548 | 2 Mozilla, Redhat | 10 Firefox, Firefox Esr, Firefox Mobile and 7 more | 2026-08-19 | 6.5 Medium |
| A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization result. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10. | ||||
| CVE-2023-29550 | 2 Mozilla, Redhat | 10 Firefox, Firefox Esr, Firefox Mobile and 7 more | 2026-08-19 | 8.8 High |
| Memory safety bugs present in Firefox 111 and Firefox ESR 102.9. 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 < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10. | ||||
| 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. | ||||