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EPSS
| CVE | CVSS | EPSS | Vendor, product | Description | Modified |
|---|---|---|---|---|---|
| CVE-2026-6770exploit | 6.5 medium | 4.0% | mozilla, firefox, thunderbird | Other issue in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2026-12295exploit | 9.6 critical | 0.00% | mozilla, firefox, thunderbird | Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | Mon 26 Oct |
| CVE-2026-109715exploit | 8.1 high | 0.00% | no CPE yet | Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5. | 16 Oct |
| CVE-2026-8388exploit | 6.5 medium | 0.00% | mozilla, firefox | Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11. | Mon 26 Oct |
| CVE-2026-109721exploit | 5.4 medium | 0.00% | no CPE yet | Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5. | 19 Oct |
| CVE-2026-6765exploit | 5.3 medium | 0.00% | mozilla, firefox, thunderbird | Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2023-4050 | 7.5 high | 13.0% | mozilla, debian, firefox, debian_linux | In some cases, an untrusted input stream was copied to a stack buffer without checking its size. This resulted in a potentially exploitable crash which could have led to a sandbox escape. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1. | Fri 23 Oct |
| CVE-2025-6424 | 9.8 critical | 8.0% | mozilla, firefox | A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12. | Fri 23 Oct |
| CVE-2015-7575 | 5.9 medium | 3.0% | mozilla, opensuse, network_security_services, leap | Mozilla Network Security Services (NSS) before 3.20.2, as used in Mozilla Firefox before 43.0.2 and Firefox ESR 38.x before 38.5.2, does not reject MD5 signatures in Server Key Exchange messages in TLS 1.2 Handshake Protocol traffic, which makes it easier for man-in-the-middle attackers to spoof servers by triggering a collision. | 14 Oct |
| CVE-2017-5436 | 8.8 high | 2.0% | debian, redhat, debian_linux, enterprise_linux, enterprise_linux_desktop | An out-of-bounds write in the Graphite 2 library triggered with a maliciously crafted Graphite font. This results in a potentially exploitable crash. This issue was fixed in the Graphite 2 library as well as Mozilla products. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53. | 16 Oct |
| CVE-2026-74990 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Internally found bugs present in Firefox ESR 115.38, Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | 15 h ago |
| CVE-2026-74988 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Internally found bugs present in Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | 15 h ago |
| CVE-2026-74987 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Internally found bugs present in Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | 15 h ago |
| CVE-2026-16360 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Memory safety bugs present in Thunderbird ESR 140.12 and Thunderbird 152. 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 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16350 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Incorrect boundary conditions in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16351 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16352 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16353 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Invalid pointer in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16355 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16356 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16357 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16361 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Memory safety bugs present in Thunderbird ESR 140.12. 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 ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16363 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16368 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16369 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Integer overflow in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16377 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Mitigation bypass in the PDF Viewer component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16383 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2023-29531 | 9.8 critical | 1.0% | mozilla, firefox, firefox_esr, thunderbird | An attacker could have caused an out of bounds memory access using WebGL APIs, leading to memory corruption and a potentially exploitable crash. *This bug only affects Firefox and Thunderbird for macOS. Other operating systems are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10. | Sat 24 Oct |
| CVE-2023-34416 | 9.8 critical | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Memory safety bugs present in Firefox 113, Firefox ESR 102.11, and Thunderbird 102.12. 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 ESR < 102.12, Firefox < 114, and Thunderbird < 102.12. | Sat 24 Oct |
| CVE-2025-11708 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Use-after-free in MediaTrackGraphImpl::GetInstance(). This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | Fri 23 Oct |
| CVE-2023-29542 | 9.8 critical | 1.0% | mozilla, firefox, firefox_esr, thunderbird | A newline in a filename could have been used to bypass the file extension security mechanisms that replace malicious file extensions such as .lnk with .download. This could have led to accidental execution of malicious code. *This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10. | Fri 23 Oct |
| CVE-2026-16412 | 9.8 critical | 1.0% | mozilla, firefox | Memory safety bugs present in Thunderbird ESR 140.12 and Thunderbird 152. 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 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | 21 Oct |
| CVE-2026-8956 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | 14 Oct |
| CVE-2026-8953 | 9.6 critical | 1.0% | mozilla, firefox, thunderbird | Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | 14 Oct |
| CVE-2023-0767 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | 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. | Sat 24 Oct |
| CVE-2023-23605 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Mozilla developers and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 108 and Firefox ESR 102.6. 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 < 109, Firefox ESR < 102.7, and Thunderbird < 102.7. | Sat 24 Oct |
| CVE-2023-25732 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | When encoding data from an <code>inputStream</code> in <code>xpcom</code> the size of the input being encoded was not correctly calculated potentially leading to an out of bounds memory write. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2023-25735 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free after unwrapping the proxy. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2023-25737 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | An invalid downcast from <code>nsTextNode</code> to <code>SVGElement</code> could have lead to undefined behavior. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2023-25739 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Module load requests that failed were not being checked as to whether or not they were cancelled causing a use-after-free in <code>ScriptLoadContext</code>. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2023-28176 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Memory safety bugs present in Firefox 110 and Firefox ESR 102.8. 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 < 111, Firefox ESR < 102.9, and Thunderbird < 102.9. | Sat 24 Oct |
| CVE-2023-29550 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, firefox_mobile | 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. | Sat 24 Oct |
| CVE-2023-37202 | 8.8 high | 1.0% | mozilla, debian, firefox, firefox_esr, thunderbird | Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13. | Sat 24 Oct |
| CVE-2023-37211 | 8.8 high | 1.0% | mozilla, debian, firefox, firefox_esr, thunderbird | Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12. 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 < 115, Firefox ESR < 102.13, and Thunderbird < 102.13. | Sat 24 Oct |
| CVE-2023-25744 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr | Mmemory safety bugs present in Firefox 109 and 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 Firefox < 110 and Firefox ESR < 102.8. | Fri 23 Oct |
| CVE-2023-25746 | 8.8 high | 1.0% | mozilla, firefox_esr, thunderbird | 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. | Fri 23 Oct |
| CVE-2023-28162 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | 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. | Fri 23 Oct |
| CVE-2023-29536 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, firefox_mobile | 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. | Fri 23 Oct |
| CVE-2023-29539 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, firefox_mobile | 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. | Fri 23 Oct |
| CVE-2023-32207 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | A missing delay in popup notifications could have made it possible for an attacker to trick a user into granting permissions. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11. | Fri 23 Oct |
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EPSS scores: 2026-10-28. NVD cursor: 2026-10-29 00:22. The News page shows only notable CVEs (KEV, your stack, new criticals, EPSS over 50%, or active exploitation per SSVC); this table has all of them.