CVE-2026-8974

CVE-2026-8974 concerns memory-safety bugs in Thunderbird 140.10 and Thunderbird 150 that could enable arbitrary code execution; fixes are available in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. Multiple vendor advisories (e.g., openSUSE SUSE 10813-1, Slackware advis...

CVE-2005-2429

CVE-2005-2429 : Firefox, when opening Microsoft Word documents, does not properly set permissions on shared sections, allowing remote attackers to write arbitrary data to open applications in Microsoft Office. The available sources (NVD/CVE records) describe the issue but do not provide concrete ...

CVE-2006-2538

The CVE-2006-2538 entry concerns the IE Tab 1.0.9 plugin for Mozilla Firefox 1.5.0.3. Vulnerability details indicate a remote user-assisted denial of service (application crash), possibly caused by a null dereference, triggered by certain Javascript via a url parameter to content/reloaded.html in...

CVE-2007-4357

Mozilla Firefox 2.0.0.6 and earlier is affected by a vulnerability where a link using a data: URI containing an encoded URL can spoof the contents of the status bar. The issue relies on the status bar’s ability to be modified, and exploitation is possible remotely via crafted links. The literatur...

CVE-2025-14327

CVE-2025-14327 is a spoofing vulnerability in the Downloads Panel component affecting Firefox < 146, Thunderbird < 146, Firefox ESR < 140.7, and Thunderbird

CVE-2026-12328

CVE-2026-12328 pertains to memory safety bugs in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151, and Thunderbird 151. Some bugs showed memory corruption and could potentially be exploited to run arbitrary code. Remediations are available: Firefox 152, Firefox ESR 140....

CVE-2026-16357

CVE-2026-16357 is a Mozilla Firefox/Firefox ESR vulnerability caused by incorrect boundary conditions in the Graphics component. Affected product: Firefox and Firefox ESR. The issue is tracked with a CVSS 3.1 base score of 9.8 (CRITICAL) with network attack vector, no user interaction, and possib...

CVE-2026-16372

CVE-2026-16372 — Privilege escalation in the DOM: Content Processes component. Affected products: Firefox and Thunderbird. The provided documents do not reveal the exact root cause or vulnerable files. CVSS 3.1 base score 8.8 (HIGH) with Network access, no privileges required, user interaction ne...

CVE-2026-2762

CVE-2026-2762 is an integer overflow in the JavaScript: Standard Library component that affects Firefox (non-ESR) and related Mozilla products. The issue is confirmed fixed in Firefox 148 and Firefox ESR 140.8, as well as Thunderbird 148 and Thunderbird 140.8. Connected advisories (Astra Linux bu...

CVE-2026-2775

CVE-2026-2775 is a mitigation bypass in the DOM: HTML Parser component. The initial description states a fix in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. Connected sources (Astra Linux bulletin and Amazon Linux advisories) reiterate the same mitig...

CVE-2026-74944

CVE-2026-74944 is a use-after-free in Firefox/Thunderbird's DOM: Core & HTML component, rated Critical (CVSS 9.8, network-exploitable, no auth or user interaction required). It enables arbitrary code execution, privilege escalation, and information disclosure. Affected versions: Firefox <154, ...

CVE-2026-8975

CVE-2026-8975 covers memory-safety bugs in Thunderbird 140.10 and Thunderbird 150, with evidence that some flaws could be exploited to run arbitrary code. The fixed versions are Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. Affected products documen...

CVE-2007-2671

The CVE-2007-2671 entry concerns Mozilla Firefox 2.0.0.3. The described vulnerability is a denial of service caused by processing a long hostname in an HREF attribute within an A element, which leads to out-of-bounds memory access. The available connected documents corroborate Firefox involvement...

CVE-2007-3827

Mozilla Firefox is affected by CVE-2007-3827: cookies can be set with a null domain (domainless cookies), enabling information to pass between arbitrary domains and potential user tracking via document.cookie in javascript:. window. The vulnerability stems from how cookies are handled with a null...

CVE-2011-3656

CVE-2011-3656 affects Mozilla Firefox up to version 3.6.24 and 4.x through 7, with a Cross-Site Scripting (XSS) flaw that allows remote attackers to inject arbitrary script or HTML via HTTP 0.9 error handling, non-default ports, and content-sniffing. The provided documents consistently describe t...

CVE-2026-4710

CVE-2026-4710 is an Audio/Video boundary-conditions flaw that affects Firefox (including ESR) and Thunderbird. The issue’s root cause is incorrect boundary handling in the Audio/Video component. Public advisories list the impact as high/critical, with CVSS 3.1 base score 9.8 (Impact: Confidential...

CVE-2026-5734

CVE-2026-5734 involves memory safety bugs in Mozilla products. Affected: Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1, and Thunderbird 149.0.1. Some bugs show memory corruption and could potentially be exploited to run arbitrary code. The issue is addressed by fixes in Firefox 14...

CVE-2007-3657

CVE-2007-3657 affects Mozilla Firefox 2.0.0.4, where opening multiple tabs in a popup window may cause a denial of service. The connected records consistently describe the DoS symptom but do not provide a concrete root cause, exploit details, affected sub-versions beyond 2.0.0.4, or an available ...

CVE-2007-5691

CVE-2007-5691 affects Mozilla Firefox 2.0.0.7, where ParseFTPList.cpp can be triggered by a crafted FTP server response to an unspecified listing command, leading to a denial of service via an application crash (reading from invalid pointer). The available connected documents corroborate Firefox ...

CVE-2011-4688

CVE-2011-4688 affects Mozilla Firefox 8.0.1 and earlier. The issue enables an attacker to infer whether a document is present in the browser cache by observing data related to the timing of Same Origin Policy violations during iframe load attempts, via crafted JavaScript. The OpenVAS entries corr...

CVE-2025-10531

CVE-2025-10531 : Affects Firefox < 143 and Thunderbird

CVE-2025-6428

The CVE-2025-6428 issue affects Firefox for Android only (other Firefox versions are not affected) and is triggered when a URL is provided in a link querystring parameter; the browser would navigate to that URL instead of the intended one, enabling phishing under certain conditions. Affected scop...

CVE-2026-4698

CVE-2026-4698 — JIT miscompilation in the JavaScript Engine (JIT component) . The issue is disclosed for Firefox/Thunderbird products and is described as a JIT miscompilation in the JavaScript engine’s JIT path. Affected versions are Firefox < 149, Firefox ESR < 115.34, and Firefox ESR

CVE-2026-74934

CVE-2026-74934 is a site isolation issue in the Graphics: CanvasWebGL component of Mozilla Firefox and Thunderbird. The CVSS 3.1 score is 7.5 (HIGH) with a vector of AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating a network-exploitable flaw requiring user interaction and high attack complexity, b...

CVE-2026-8947

CVE-2026-8947 describes a use-after-free in the DOM: Bindings (WebIDL) component of Firefox. The available sources confirm the issue and state it was fixed in Firefox 151, Firefox ESR 115.36, and Firefox ESR 140.11. The documents do not provide exploit details, affected subcomponents beyond the W...

CVE-2026-8948

CVE-2026-8948: A same-origin policy bypass in the DOM: Networking component affecting Firefox and Thunderbird; fixed in Firefox 151 and Thunderbird 151. CVSS 3.1: 9.1 (CRITICAL), attack vector NETWORK, complexity LOW, no user interaction. No exploitation details provided in the documents. Remedia...

CVE-2026-8957

CVE-2026-8957 involves a privilege-escalation issue in Mozilla Firefox/Thunderbird’s Enterprise Policies component. Affected products include Firefox and Thunderbird, with fixes in Firefox 151 and Firefox ESR 140.11 (and corresponding Thunderbird updates 151/140.11). The vulnerability details in ...

CVE-2025-13012

CVE-2025-13012 describes a race condition in Firefox/Graphics. Affected: Firefox <145, Firefox ESR <140.5, Firefox ESR

CVE-2025-13013

CVE-2025-13013 is a mitigation-bypass in the DOM: Core & HTML component, affecting Firefox and Thunderbird up to certain pre‑145/ESR versions (Firefox <145, ESR <140.5, ESR

CVE-2026-0885

CVE-2026-0885 is a use-after-free in Firefox/Thunderbird’s JavaScript: GC component. Affected: Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, Thunderbird

CVE-2026-16392

CVE-2026-16392 concerns a JIT miscompilation in the JavaScript Engine: JIT component. Multiple connected advisories indicate this issue affects Firefox/Thunderbird releases prior to version 153 and has been fixed in Firefox 153 and Thunderbird 153. Public details in the provided documents specify...

CVE-2026-24868

CVE-2026-24868 describes a mitigation bypass in Firefox’s Privacy: Anti-Tracking component, affecting Firefox versions earlier than 147.0.2. The vulnerability is tied to a bypass of mitigation controls in the Anti-Tracking module; no exploit vectors or root-cause details are provided in the suppl...

CVE-2026-74979

A mitigation bypass in Firefox/Thunderbird's Add-ons Manager allows a network-based attacker with no privileges to execute arbitrary code, achieving full confidentiality, integrity, and availability impact. Patches are available in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird ...

CVE-2026-8956

The CVE-2026-8956 issue is an integer overflow in the Networking: JAR component. Affected products include Firefox (includes Firefox 151 and Firefox ESR 140.11) and Thunderbird (incl. Thunderbird 151 and Thunderbird 140.11). The root cause is an integer overflow within the JAR networking module, ...

CVE-2007-5896

Mozilla Firefox 2.0.0.9 is affected by CVE-2007-5896 where an iframe with JavaScript can trigger a denial of service by redirecting document.location to include a leading NULL byte with URIs such as res://, about:config, or file:///. The vulnerability allows remote attackers to cause CPU consumpt...

CVE-2008-3444

The connected records confirm a vulnerability in Mozilla Firefox 3.0 and 3.0.1 where the content layout component can be triggered by a crafted but well-formed HTML page containing a simple set of legitimate tags. This leads to a NULL pointer dereference and a browser crash, i.e., a denial of ser...

CVE-2025-13027

CVE-2025-13027 is a memory-safety issue affecting Firefox and Thunderbird prior to version 145. The connected documents corroborate memory-corruption–related bugs in Firefox 144/Thunderbird 144, with the advisory noting potential arbitrary-code execution if exploited. Affected products include Fi...

CVE-2025-14322

CVE-2025-14322: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. Affected software: Firefox versions before 146 and ESR before 115.31 and 140.6. The issue is described across multiple advisories (ALAS2023-2025-1337, ALAS2FIREFOX-2025-049, ALSA-2025:23128...

CVE-2026-12314

CVE-2026-12314 is a memory-safety vulnerability in Mozilla Firefox/Thunderbird addressed by updates to Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. Debian’s advisory confirms Firefox ESR 140.12.0esr-1~deb13u1 fixes the issue for firefox-esr in the stable trixie packag...

CVE-2026-12327

CVE-2026-12327 relates to memory safety bugs in Mozilla products: Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151, and Thunderbird 151. Some bugs showed evidence of memory corruption and could potentially be exploited to run arbitrary code. The issue was fixed in Firefox 152, Firefox ESR ...

CVE-2026-16385

CVE-2026-16385 is a information-disclosure vulnerability in Firefox related to the Graphics: WebGPU component caused by uninitialized memory. The issue affects Firefox versions prior to 153 and is fixed in Firefox 153. The CVE description and cross-reference set describe the vulnerability as an i...

CVE-2026-24869

CVE-2026-24869 documents a Use-after-free in Firefox’s Layout: Scrolling and Overflow component, affecting Firefox versions earlier than 147.0.2. The vulnerability is described in multiple sources as a use-after-free issue with potential impact to memory safety in that UI/layout area. Nessus/Free...

CVE-2026-2777

CVE-2026-2777 is a privilege-escalation vulnerability in the Firefox/Thunderbird Messaging System component. The issue is fixed in Firefox 148, Firefox ESR 115.33/140.8, Thunderbird 148, and Thunderbird 140.8. Connected sources (Astra Linux, AWS advisories, Debian security notes) confirm the same...

CVE-2026-2787

CVE-2026-2787 is a use-after-free in the DOM: Window and Location component, with fixes in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. Connected sources corroborate the issue in Firefox-related components and list the affected products as Firefox/Th...

CVE-2026-2788

CVE-2026-2788 concerns incorrect boundary conditions in the Audio/Video: GMP component of Mozilla Firefox. Public advisories (e.g., Firefox/Firefox ESR updates in Firefox 148, ESR 115.33, ESR 140.8) and downstream Debian/AlmaLinux advisories confirm the fix was applied in those versions. Connecte...

CVE-2026-4701

CVE-2026-4701 is a use-after-free vulnerability in the JavaScript Engine. It affects Firefox and Thunderbird products and is fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. Exploitation status is not provided in the connected documents.

CVE-2026-74941

Mozilla Firefox's CanvasWebGL graphics component allows privilege escalation. Fixed in Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1. CVSS 8.8 (HIGH) with network attack vector requiring user interaction. No exploitation reported in the wild; users should update to the patched versions. ...

CVE-2006-5783

CVE-2006-5783 affects Firefox 1.5.0.7 on Kubuntu Linux and is triggered by a long URL in an A tag, causing a denial of service (crash). The report is disputed by several vendors who could not reproduce it, and CVE notes the impact scope (system freeze) may not be Firefox-related; no fix/version i...

CVE-2007-5459

CVE-2007-5459 concerns MouseoverDictionary (Firefox extension) prior to version 0.6.2. The cited sources indicate a cross-site scripting (XSS) vulnerability in the sidebar HTML page, allowing remote scripts to be executed in the user's browser via unspecified vectors. The vulnerability affects th...

CVE-2026-2767

CVE-2026-2767 is a use-after-free vulnerability in the JavaScript: WebAssembly component of Firefox/Thunderbird. Affected products include Firefox (Desktop) and Thunderbird with the WebAssembly implementation; the issue is addressed by fixes in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and...