MozillaThunderbird (SUSE:Linux Enterprise Module for Package Hub 15 SP7) — known CVEs & security advisories
Known CVE vulnerabilities and GitHub Security Advisories affecting the SUSE:Linux Enterprise Module for Package Hub 15 SP7 package MozillaThunderbird, with affected version ranges, CVSS severity, EPSS exploit prediction, and CISA KEV status.
CVEs (135)
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-2026-2778 — 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-2026-2761 — 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-2026-2776 — CVSS 10.0 (critical): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in…
CVE-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-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-2025-8038 — CVSS 9.8 (critical): Thunderbird ignored paths when checking the validity of navigations in a frame. This vulnerability was fixed in Firefox 141, Firefox ESR…
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-2026-2775 — 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-2026-5734 — 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-2026-2764 — 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-2026-2791 — 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-2026-2766 — 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-2026-2790 — 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-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-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-2025-14321 — 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-2026-2759 — 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-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-2025-14324 — 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-2026-2758 — 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-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-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-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-2026-2789 — 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-2026-2771 — 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-2026-2773 — 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-2025-6433 — CVSS 9.8 (critical): If a user visited a webpage with an invalid TLS certificate, and granted an exception, the webpage was able to provide a WebAuthn challenge…
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-2026-2774 — 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-2026-2780 — 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-2026-2765 — 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-2026-2767 — 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-2026-2788 — 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-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-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-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-2026-2792 — 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-2026-2779 — 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-2026-2786 — 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-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-2026-0884 — 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-2026-2782 — 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-2026-2772 — 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-2026-0879 — 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-2026-2781 — 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-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-2025-8037 — CVSS 9.1 (critical): Setting a nameless cookie with an equals sign in the value shadowed other cookies. Even if the nameless cookie was set over HTTP and the…
CVE-2025-6427 — CVSS 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…
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-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-2025-4919 — 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-2025-6426 — CVSS 8.8 (high): The executable file warning did not warn users before opening files with the `terminal` extension. *This bug only affects Firefox for…
CVE-2025-8040 — CVSS 8.8 (high): Memory safety bugs present in Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. Some of these bugs showed evidence…
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-2026-2447 — 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-2025-6432 — CVSS 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…
CVE-2025-6436 — CVSS 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…
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-2025-6435 — CVSS 8.1 (high): If a user saved a response from the Network tab in Devtools using the Save As context menu option, that file may not have been saved with…
CVE-2025-8039 — CVSS 8.1 (high): In some cases search terms persisted in the URL bar even after navigating away from the search page. This vulnerability was fixed in…
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-2025-3909 — CVSS 8.1 (high): Thunderbird's handling of the X-Mozilla-External-Attachment-URL header can be exploited to execute JavaScript in the file:/// context. By…
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-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-2025-13019 — 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-2025-8032 — 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-2025-13018 — 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-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-2025-8036 — CVSS 8.1 (high): Thunderbird cached CORS preflight responses across IP address changes. This allowed circumventing CORS with DNS rebinding. This…
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-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-2025-9184 — CVSS 8.1 (high): Memory safety bugs present in Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence…
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-2025-5269 — 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-2025-11713 — CVSS 8.1 (high): Insufficient escaping in the “Copy as cURL” feature could have been used to trick a user into executing unexpected code on Windows…
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-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-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-2025-3875 — CVSS 7.5 (high): Thunderbird parses addresses in a way that can allow sender spoofing in case the server allows an invalid From address to be used. For…
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-2026-2783 — CVSS 7.5 (high): Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148…
CVE-2025-5262 — CVSS 7.5 (high): A double-free could have occurred in `vpx_codec_enc_init_multi` after a failed allocation when initializing the encoder for WebRTC. This…
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-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-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-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-2025-10529 — CVSS 6.5 (medium): Same-origin policy bypass in the Layout component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and…
CVE-2025-3932 — CVSS 6.5 (medium): It was possible to craft an email that showed a tracking link as an attachment. If the user attempted to open the attachment, Thunderbird…
CVE-2025-10532 — CVSS 6.5 (medium): Incorrect boundary conditions in the JavaScript: GC component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird…
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-2025-8027 — CVSS 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…
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-2025-5986 — CVSS 6.5 (medium): A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's desktop or home…
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-2025-11711 — CVSS 6.5 (medium): There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability was fixed in…
CVE-2025-9181 — CVSS 6.5 (medium): Uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 142, Firefox ESR 128.14, Firefox ESR…
CVE-2025-8033 — CVSS 6.5 (medium): The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref. This…
CVE-2025-10536 — CVSS 6.2 (medium): Information disclosure in the Networking: Cache component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143…
CVE-2025-13013 — CVSS 6.1 (medium): Mitigation bypass in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Firefox ESR 115.30…
CVE-2025-11712 — CVSS 6.1 (medium): A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web…
CVE-2025-6430 — CVSS 6.1 (medium): When a file download is specified via the `Content-Disposition` header, that directive would be ignored if the file was included via a…
CVE-2025-5267 — CVSS 5.4 (medium): A clickjacking vulnerability could have been used to trick a user into leaking saved payment card details to a malicious page. This…
CVE-2026-0890 — CVSS 5.4 (medium): Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7…
CVE-2026-0886 — CVSS 5.3 (medium): Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR…
CVE-2026-0883 — CVSS 5.3 (medium): Information disclosure in the Networking component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and…
CVE-2025-5264 — CVSS 4.8 (medium): Due to insufficient escaping of the newline character in the “Copy as cURL” feature, an attacker could trick a user into using this…
CVE-2025-5265 — CVSS 4.8 (medium): Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user into using this…
CVE-2025-6434 — CVSS 4.3 (medium): The exception page for the HTTPS-Only feature, displayed when a website is opened via HTTP, lacked an anti-clickjacking delay, potentially…
CVE-2026-0818 — CVSS 4.3 (medium): When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was…
CVE-2026-0887 — CVSS 4.3 (medium): Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7…
CVE-2025-5263 — CVSS 4.3 (medium): Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks. This…
CVE-2025-5266 — CVSS 4.3 (medium): Script elements loading cross-origin resources generated load and error events which leaked information enabling XS-Leaks attacks. This…
CVE-2025-6425 — CVSS 4.3 (medium): An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and…
CVE-2025-13015 — CVSS 3.4 (low): Spoofing issue in Firefox. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, and Firefox ESR 115.30.
CVE-2025-3877: Rejected reason: This CVE was marked as fixed, but due to other code landing - was not actually fixed. It was subsequently fixed in…