firefox (AlmaLinux:10) — known CVEs & security advisories
Known CVE vulnerabilities and GitHub Security Advisories affecting the AlmaLinux:10 package firefox, with affected version ranges, CVSS severity, EPSS exploit prediction, and CISA KEV status.
CVEs (200)
CVE-2026-4689 — CVSS 10.0 (critical): Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149…
CVE-2026-4688 — CVSS 10.0 (critical): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 149, Firefox ESR…
CVE-2026-2761 — CVSS 10.0 (critical): Sandbox escape in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8…
CVE-2026-2760 — CVSS 10.0 (critical): Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148…
CVE-2026-2768 — CVSS 10.0 (critical): Sandbox escape in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and…
CVE-2026-2776 — CVSS 10.0 (critical): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in…
CVE-2026-4692 — CVSS 10.0 (critical): Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9…
CVE-2026-2778 — CVSS 10.0 (critical): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox…
CVE-2026-2758 — CVSS 9.8 (critical): Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8…
CVE-2026-2757 — CVSS 9.8 (critical): Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33…
CVE-2026-5734 — CVSS 9.8 (critical): Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs…
CVE-2026-4721 — CVSS 9.8 (critical): Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these…
CVE-2026-4720 — CVSS 9.8 (critical): Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence…
CVE-2026-4717 — CVSS 9.8 (critical): Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and…
CVE-2025-14321 — CVSS 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…
CVE-2026-2784 — CVSS 9.8 (critical): Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and…
CVE-2026-2767 — CVSS 9.8 (critical): Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148…
CVE-2026-2766 — CVSS 9.8 (critical): Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148…
CVE-2026-2765 — CVSS 9.8 (critical): Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and…
CVE-2026-2764 — CVSS 9.8 (critical): JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR…
CVE-2026-2763 — CVSS 9.8 (critical): Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8…
CVE-2026-2762 — CVSS 9.8 (critical): Integer overflow in the JavaScript: Standard Library component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird…
CVE-2026-2759 — CVSS 9.8 (critical): Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox…
CVE-2026-8956 — CVSS 9.8 (critical): Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and…
CVE-2026-6771 — CVSS 9.8 (critical): Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and…
CVE-2026-2777 — CVSS 9.8 (critical): Privilege escalation in the Messaging System component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8…
CVE-2026-0884 — CVSS 9.8 (critical): Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and…
CVE-2026-2775 — CVSS 9.8 (critical): Mitigation bypass in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8…
CVE-2026-2774 — CVSS 9.8 (critical): Integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8…
CVE-2026-2773 — CVSS 9.8 (critical): Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR…
CVE-2026-2772 — CVSS 9.8 (critical): Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8…
CVE-2026-6748 — CVSS 9.8 (critical): Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird…
CVE-2026-2771 — CVSS 9.8 (critical): Undefined behavior in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8…
CVE-2026-8401 — CVSS 9.8 (critical): Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11…
CVE-2026-2770 — CVSS 9.8 (critical): Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8…
CVE-2025-11708 — CVSS 9.8 (critical): Use-after-free in MediaTrackGraphImpl::GetInstance(). This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and…
CVE-2025-14324 — CVSS 9.8 (critical): JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR…
CVE-2026-4711 — CVSS 9.8 (critical): Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and…
CVE-2025-11709 — CVSS 9.8 (critical): A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures…
CVE-2025-11710 — CVSS 9.8 (critical): A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to…
CVE-2025-14330 — CVSS 9.8 (critical): JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird…
CVE-2026-4710 — CVSS 9.8 (critical): Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird…
CVE-2026-4705 — CVSS 9.8 (critical): Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and…
CVE-2026-8094 — CVSS 9.8 (critical): Other issue in the WebRTC component. This vulnerability was fixed in Firefox ESR 140.10.2 and Thunderbird 140.10.2.
CVE-2026-4702 — CVSS 9.8 (critical): JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and…
CVE-2026-4701 — CVSS 9.8 (critical): Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and…
CVE-2026-4700 — CVSS 9.8 (critical): Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and…
CVE-2025-4918 — CVSS 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…
CVE-2026-4698 — CVSS 9.8 (critical): JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR…
CVE-2026-4696 — CVSS 9.8 (critical): Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9…
CVE-2026-4691 — CVSS 9.8 (critical): Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR…
CVE-2025-6424 — CVSS 9.8 (critical): A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability was fixed in Firefox 140, Firefox ESR…
CVE-2026-2793 — CVSS 9.8 (critical): Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these…
CVE-2026-2792 — CVSS 9.8 (critical): Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence…
CVE-2026-2791 — CVSS 9.8 (critical): Mitigation bypass in the Networking: Cache component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and…
CVE-2026-2790 — CVSS 9.8 (critical): Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird…
CVE-2025-8028 — CVSS 9.8 (critical): On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation…
CVE-2026-2789 — CVSS 9.8 (critical): Use-after-free in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8…
CVE-2026-2788 — CVSS 9.8 (critical): Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox…
CVE-2025-8031 — CVSS 9.8 (critical): The `username:password` part was not correctly stripped from URLs in CSP reports potentially leaking HTTP Basic Authentication credentials…
CVE-2026-2787 — CVSS 9.8 (critical): Use-after-free in the DOM: Window and Location component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR…
CVE-2026-2786 — CVSS 9.8 (critical): Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and…
CVE-2026-2785 — CVSS 9.8 (critical): Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and…
CVE-2025-9179 — CVSS 9.8 (critical): An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily…
CVE-2026-2782 — CVSS 9.8 (critical): Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and…
CVE-2026-2781 — CVSS 9.8 (critical): Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148…
CVE-2026-2780 — CVSS 9.8 (critical): Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and…
CVE-2026-2779 — CVSS 9.8 (critical): Incorrect boundary conditions in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird…
CVE-2026-0879 — CVSS 9.8 (critical): Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR…
CVE-2026-12295 — CVSS 9.6 (critical): Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37…
CVE-2026-12294 — CVSS 9.6 (critical): Sandbox escape in the DOM: Workers component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37…
CVE-2026-8953 — CVSS 9.6 (critical): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 151, Firefox ESR…
CVE-2026-7321 — CVSS 9.6 (critical): Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150…
CVE-2026-12296 — CVSS 9.6 (critical): Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird…
CVE-2026-12297 — CVSS 9.6 (critical): Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 152, Firefox ESR…
CVE-2026-8950 — CVSS 9.3 (critical): Same-origin policy bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird…
CVE-2025-4083 — CVSS 9.1 (critical): A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow content to execute…
CVE-2026-12315 — CVSS 9.1 (critical): Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and…
CVE-2026-12304 — CVSS 9.1 (critical): Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12…
CVE-2026-4715 — CVSS 9.1 (critical): Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149…
CVE-2026-4716 — CVSS 9.1 (critical): Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 149…
CVE-2025-10533 — CVSS 8.8 (high): Integer overflow in the SVG component. This vulnerability was fixed in Firefox 143, Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird 143…
CVE-2025-10537 — CVSS 8.8 (high): Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. Some of these bugs showed evidence…
CVE-2025-11714 — CVSS 8.8 (high): Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these…
CVE-2025-11715 — CVSS 8.8 (high): Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence…
CVE-2025-13014 — CVSS 8.8 (high): Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Firefox ESR 115.30…
CVE-2025-13020 — CVSS 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…
CVE-2025-14323 — CVSS 8.8 (high): Privilege escalation in the DOM: Notifications component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR…
CVE-2025-14328 — CVSS 8.8 (high): Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and…
CVE-2025-14329 — CVSS 8.8 (high): Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and…
CVE-2025-2817 — CVSS 8.8 (high): Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the…
CVE-2025-4919 — CVSS 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…
CVE-2026-0880 — CVSS 8.8 (high): Sandbox escape due to integer overflow in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox…
CVE-2026-0882 — CVSS 8.8 (high): Use-after-free in the IPC component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147…
CVE-2026-12289 — CVSS 8.8 (high): Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR…
CVE-2026-12291 — CVSS 8.8 (high): Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37…
CVE-2026-2447 — CVSS 8.8 (high): Heap buffer overflow in libvpx. This vulnerability was fixed in Firefox 147.0.4, Firefox ESR 140.7.1, Firefox ESR 115.32.1, Thunderbird…
CVE-2026-2769 — CVSS 8.8 (high): Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8…
CVE-2026-5732 — CVSS 8.8 (high): Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability was fixed in Firefox 149.0.2, Firefox…
CVE-2026-6750 — CVSS 8.8 (high): Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR…
CVE-2026-6761 — CVSS 8.8 (high): Privilege escalation in the Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and…
CVE-2026-6769 — CVSS 8.8 (high): Privilege escalation in the Debugger component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and…
CVE-2026-8955 — CVSS 8.8 (high): Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and…
CVE-2026-8957 — CVSS 8.8 (high): Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird…
CVE-2026-8970 — CVSS 8.8 (high): Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and…
CVE-2026-8974 — CVSS 8.8 (high): Memory safety bugs present in Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of memory corruption and we presume…
CVE-2026-8975 — CVSS 8.8 (high): Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of memory…
CVE-2026-8958 — CVSS 8.6 (high): Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151, Firefox…
CVE-2026-4690 — CVSS 8.6 (high): Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149…
CVE-2026-4687 — CVSS 8.6 (high): Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability was fixed in Firefox 149, Firefox ESR…
CVE-2026-12327 — CVSS 8.1 (high): Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed…
CVE-2025-13017 — CVSS 8.1 (high): Same-origin policy bypass in the DOM: Notifications component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird…
CVE-2026-8962 — CVSS 8.1 (high): Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and…
CVE-2026-12292 — CVSS 8.1 (high): Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152…
CVE-2026-12290 — CVSS 8.1 (high): Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird…
CVE-2025-5269 — CVSS 8.1 (high): Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of memory corruption and we presume that…
CVE-2026-0891 — CVSS 8.1 (high): Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence…
CVE-2025-13018 — CVSS 8.1 (high): Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and…
CVE-2026-12328 — CVSS 8.1 (high): Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of…
CVE-2026-4718 — CVSS 8.1 (high): Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and…
CVE-2025-13019 — CVSS 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…
CVE-2025-8030 — CVSS 8.1 (high): Insufficient escaping in the “Copy as cURL” feature could potentially be used to trick a user into executing unexpected code. This…
CVE-2026-8092 — CVSS 8.1 (high): Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. Some of these bugs showed evidence of memory…
CVE-2025-5268 — CVSS 8.1 (high): Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10. Some of these bugs showed evidence…
CVE-2025-4091 — CVSS 8.1 (high): Memory safety bugs present in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9. Some of these bugs showed evidence of…
CVE-2025-4093 — CVSS 8.1 (high): Memory safety bug present in Firefox ESR 128.9, and Thunderbird 128.9. This bug showed evidence of memory corruption and we presume that…
CVE-2025-8032 — CVSS 8.1 (high): XSLT document loading did not correctly propagate the source document which bypassed its CSP. This vulnerability was fixed in Firefox 141…
CVE-2025-8029 — CVSS 8.1 (high): Thunderbird executed `javascript:` URLs when used in `object` and `embed` tags. This vulnerability was fixed in Firefox 141, Firefox ESR…
CVE-2026-0877 — CVSS 8.1 (high): Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7…
CVE-2025-14333 — CVSS 8.1 (high): Memory safety bugs present in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145 and Thunderbird 145. Some of these bugs showed evidence…
CVE-2025-9180 — CVSS 8.1 (high): Same-origin policy bypass in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR…
CVE-2025-14322 — CVSS 8.0 (high): Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 146…
CVE-2026-0878 — CVSS 8.0 (high): Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 147…
CVE-2026-6776 — CVSS 7.8 (high): Incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10…
CVE-2026-33636 — CVSS 7.6 (high): LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files…
CVE-2026-6759 — CVSS 7.5 (high): Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and…
CVE-2026-12312 — CVSS 7.5 (high): Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird…
CVE-2026-8954 — CVSS 7.5 (high): Incorrect boundary conditions, integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 151, Firefox ESR…
CVE-2026-12305 — CVSS 7.5 (high): Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird…
CVE-2026-12314 — CVSS 7.5 (high): Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird…
CVE-2025-9182 — CVSS 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…
CVE-2026-2783 — CVSS 7.5 (high): Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148…
CVE-2026-8946 — CVSS 7.5 (high): Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36…
CVE-2026-33416 — CVSS 7.5 (high): LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files…
CVE-2026-4684 — CVSS 7.5 (high): Race condition, use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34…
CVE-2026-4685 — CVSS 7.5 (high): Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox…
CVE-2026-4686 — CVSS 7.5 (high): Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox…
CVE-2026-12310 — CVSS 7.5 (high): Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird…
CVE-2026-4693 — CVSS 7.5 (high): Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34…
CVE-2026-4694 — CVSS 7.5 (high): Incorrect boundary conditions, integer overflow in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34…
CVE-2026-4695 — CVSS 7.5 (high): Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9…
CVE-2026-4697 — CVSS 7.5 (high): Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9…
CVE-2026-4699 — CVSS 7.5 (high): Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34…
CVE-2026-4704 — CVSS 7.5 (high): Denial-of-service in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and…
CVE-2026-4706 — CVSS 7.5 (high): Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox…
CVE-2026-4707 — CVSS 7.5 (high): Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox…
CVE-2026-4708 — CVSS 7.5 (high): Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149…
CVE-2026-4709 — CVSS 7.5 (high): Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox…
CVE-2025-14327 — CVSS 7.5 (high): Spoofing issue in the Downloads Panel component. This vulnerability was fixed in Firefox 146, Thunderbird 146, Firefox ESR 140.7, and…
CVE-2026-4712 — CVSS 7.5 (high): Information disclosure in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and…
CVE-2026-4713 — CVSS 7.5 (high): Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149…
CVE-2026-4714 — CVSS 7.5 (high): Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird…
CVE-2026-4719 — CVSS 7.5 (high): Incorrect boundary conditions in the Graphics: Text component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird…
CVE-2025-13016 — CVSS 7.5 (high): Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5…
CVE-2026-6746 — CVSS 7.5 (high): Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10…
CVE-2026-6747 — CVSS 7.5 (high): Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird…
CVE-2026-6749 — CVSS 7.5 (high): Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150…
CVE-2026-8968 — CVSS 7.5 (high): Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR…
CVE-2026-6754 — CVSS 7.5 (high): Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10…
CVE-2026-6785 — CVSS 7.5 (high): Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. Some of these…
CVE-2026-7320 — CVSS 7.5 (high): Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1…
CVE-2026-6766 — CVSS 7.5 (high): Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10…
CVE-2026-6786 — CVSS 7.5 (high): Memory safety bugs present in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. Some of these bugs showed evidence…
CVE-2025-13012 — CVSS 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…
CVE-2026-6772 — CVSS 7.5 (high): Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox…
CVE-2026-8090 — CVSS 7.3 (high): Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR…
CVE-2026-12324 — CVSS 7.3 (high): Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12…
CVE-2026-7323 — CVSS 7.3 (high): Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and…
CVE-2026-7322 — CVSS 7.3 (high): Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and…
CVE-2026-8947 — CVSS 7.3 (high): Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR…
CVE-2025-14325 — CVSS 7.3 (high): JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird…
CVE-2026-6751 — CVSS 7.3 (high): Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird…
CVE-2025-10528 — CVSS 7.3 (high): Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143…
CVE-2026-6752 — CVSS 7.3 (high): Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10…
CVE-2026-6753 — CVSS 7.3 (high): Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150…
CVE-2025-10527 — CVSS 7.1 (high): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3…
CVE-2026-6764 — CVSS 6.5 (medium): Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10…
CVE-2026-8961 — CVSS 6.5 (medium): Spoofing issue in the Form Autofill component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and…
CVE-2025-14331 — CVSS 6.5 (medium): Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR…
CVE-2026-6770 — CVSS 6.5 (medium): Other issue in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and…
CVE-2026-0885 — CVSS 6.5 (medium): Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and…
CVE-2026-12309 — CVSS 6.5 (medium): Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird…
CVE-2025-6429 — CVSS 6.5 (medium): Firefox could have incorrectly parsed a URL and rewritten it to the youtube.com domain when parsing the URL specified in an `embed` tag…
CVE-2026-8388 — CVSS 6.5 (medium): Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36…
CVE-2026-12325 — CVSS 6.5 (medium): Denial-of-service in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37…
CVE-2026-12302 — CVSS 6.5 (medium): Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37…