CVE-2021-43532

Summary: CVE-2021-43532 affects Firefox prior to 94 and relates to the Copy Image Link context menu. The bug allowed copying the final image URL after redirects, enabling token theft if a user pasted the URL back into a page and the URL leaked authentication tokens. The underlying issue involved ...

CVE-2012-4183

CVE-2012-4183 is a use-after-free in DOMSVGTests::GetRequiredFeatures affecting Firefox before 16.0, Firefox ESR before 10.0.8, Thunderbird before 16.0, and SeaMonkey before 2.13, with potential for remote code execution or a denial of service via heap memory corruption. Connected advisories from...

CVE-2014-1519

CVE-2014-1519 refers to multiple vulnerabilities in Mozilla Firefox (browser engine) prior to 29.0 and SeaMonkey prior to 2.26. The core issue is memory corruption that can cause a denial of service or possibly allow arbitrary code execution via unknown vectors. The connected documents corroborat...

CVE-2016-9065

CVE-2016-9065 affects Firefox for Android and is a UI spoofing flaw where the location bar can be spoofed by forcing fullscreen mode, blocking exit, and displaying a fake address bar without user notification. The issue is limited to Firefox for Android; other OSes are not affected, and the vulne...

CVE-2024-10941

CVE-2024-10941 affects Firefox versions prior to 126. The issue is triggered by a malicious website embedding an iframe with a malformed URI, resulting in a browser crash that is described as non-exploitable. Public details consistently reference Firefox

CVE-2025-8037

CVE-2025-8037 affects Mozilla Firefox (and Thunderbird) browsers when a nameless cookie value contains an equals sign, shadowing other cookies. Affected: Firefox <141, Firefox ESR <140.1, Thunderbird <141, Thunderbird

CVE-2014-1496

CVE-2014-1496 affects Mozilla Firefox (up to 28.0) and related Mozilla suite components (Firefox ESR 24.x up to 24.4, Thunderbird up to 24.4, SeaMonkey up to 2.25). The vulnerability allows local users to gain privileges by modifying the extracted Mar contents during an update, constituting a loc...

CVE-2021-4128

The CVE-2021-4128 entry describes a macOS-specific Firefox vulnerability where a graphics object isn’t properly protected when entering/exiting fullscreen, causing memory corruption and a potentially exploitable crash. Affected product: Mozilla Firefox on macOS (Firefox versions earlier than 95)....

CVE-2021-43531

CVE-2021-43531 affects Firefox prior to version 94. The issue arises when a Web Extension loads a context menu and could access the post-redirect URL of the clicked element if it lacked WebRequest permissions for the involved hosts, causing a same-origin-violation that leaks data the extension wo...

CVE-2025-1941

CVE-2025-1941 concerns Mozilla Firefox before version 136, with an authentication-bypass in an opt-in focus setting. The initial description states bypass under certain circumstances but provides no specific root-cause or exploit details. Connected documents corroborate Firefox < 136 as affect...

CVE-2025-3035

Mozilla Firefox vulnerability CVE-2025-3035 affects Firefox versions earlier than 137.0. When a user opens an AI chatbot in one tab and later activates it in another, the document title from the previous tab can leak into the chat prompt. The available connected sources confirm the affected produ...

CVE-2025-4092

The CVE-2025-4092 entry concerns memory safety bugs in Mozilla Firefox 137/Thunderbird 137 that reportedly could be exploited to execute arbitrary code. Affected products are Firefox and Thunderbird versions before 138. Root cause is memory safety/memory corruption in the browser components; Mozi...

CVE-2025-6433

CVE-2025-6433 describes a WebAuthn behavior where, if a user visits a page with an invalid TLS certificate and grants an exception, the page could present a WebAuthn challenge, violating WebAuthN’s requirement for a secure transport. Affected products include Mozilla Firefox and Thunderbird prior...

CVE-2025-8027

CVE-2025-8027 describes a 64-bit value handling bug in the Firefox/Thunderbird JavaScript engines: on 64-bit platforms IonMonkey-JIT writes only 32 bits of a 64-bit return value to the stack, while Baseline-JIT reads all 64 bits. This can disclose or mishandle information in the return value spac...

CVE-2026-6747

CVE-2026-6747 is a use-after-free vulnerability in the WebRTC component. Technical details across connected advisories show this affects Firefox/Firefox ESR and Thunderbird suites, with fixes applied in Firefox 150 and ESR 140.10, and in Thunderbird 150 (also 140.10). Remediation per the linked a...

CVE-2026-8090

CVE-2026-8090 describes a use-after-free in Firefox’s DOM: Networking component. The issue is fixed in Firefox 150.0.2, Firefox ESR 140.10.2, and Firefox ESR 115.35.2. The connected sources confirm the vulnerability class and the exact patched versions. The description does not specify affected c...

CVE-2006-1530

Technical details for CVE-2006-1530 are not publicly available in the provided documents. Monitor for updates.

CVE-2012-5843

CVE-2012-5843 affects Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14. The vulnerability is described as unspecified memory safety hazards in the browser engine that could lead to memory corruption and a crash (DoS) or, potentially, arbitrary code execution via unk...

CVE-2017-5409

The CVE-2017-5409 issue affects Mozilla Firefox on Windows (Firefox ESR <45.8 and Firefox

CVE-2025-6426

The CVE-2025-6426 issue affects Firefox for macOS where opening files with the terminal extension did not warn the user. Connected advisories confirm affected products and versions: Firefox before 140 and Firefox ESR before 128.12, Thunderbird before 140 and Thunderbird before 128.12. The root ca...

CVE-2025-6429

CVE-2025-6429 is active in Firefox/Thunderbird . The issue arises from an incorrect URL parse in an embed tag, which could rewrite a URL to youtube.com and bypass domain-embedding security checks. Affected products include Firefox and Thunderbird; versions affected are Firefox < 140 and Firefo...

CVE-2014-1478

This CVE (CVE-2014-1478) affects Mozilla Firefox before 27.0 and SeaMonkey before 2.24. The issue involves memory corruption in the browser engine (MPostWriteBarrier in js/src/jit/MIR.h and stack alignment in js/src/jit/AsmJS.cpp in OdinMonkey) and may allow remote code execution or cause a crash...

CVE-2025-3031

CVE-2025-3031 : A vulnerability in Mozilla’s JIT-compiled code allows reading 32 bits spilled onto the stack. Affected products are Firefox and Thunderbird prior to version 137. Root cause, impact, and affected components are stated, but no exploitation details are provided in the documents. Reme...

CVE-2025-8028

CVE-2025-8028 describes a vulnerability in Firefox and Thunderbird affecting arm64 WASM, where a br_table with many entries can cause the branch label to be miscomputed due to truncation. Affected are Firefox and Firefox ESR versions prior to 141/115.26/128.13/140.1 and Thunderbird versions prior...

CVE-2025-8031

CVE-2025-8031 concerns a vulnerability where the username:password portion is not correctly stripped from URLs in CSP reports, potentially leaking HTTP Basic Authentication credentials. The CVE’s context across connected documents shows affected software including Firefox and Thunderbird variants...

CVE-2026-2757

CVE-2026-2757 (FF/Thunderbird) is confirmed with root cause: incorrect boundary conditions in the WebRTC: Audio/Video component, fixed in Firefox 148, Firefox ESR 115.33/140.8 ESR, Thunderbird 148/140.8. Affected products explicitly include Firefox and Thunderbird lines in multiple advisories (AL...

CVE-2013-0784

CVE-2013-0784 is one of multiple memory-safety vulnerabilities affecting Mozilla Firefox, Thunderbird, and SeaMonkey. The connected advisories (Ubuntu USN-1729-2 and related GLSA/Nessus entries) document memory corruption risks that could lead to denial of service or potentially arbitrary code ex...

CVE-2017-7763

CVE-2017-7763 : On macOS OS X, default fonts render some Tibetan characters as whitespace, enabling spoofing when used in an IDN in the address bar. Affected products/versions (per connected docs): Firefox versions before 54, Firefox ESR before 52.2, and Thunderbird before 52.2. The issue is spec...

CVE-2021-29953

Mode C: Affected software is Mozilla Firefox and Firefox for Android prior to 88.0.1/88.1.3. The root cause is insecure handling of multiple prompts involving javascript: URLs that can force attacker-controlled JavaScript to run in the context of another domain, yielding a Universal Cross‑Site Sc...

CVE-2025-14321

The CVE-2025-14321 entry documents a Use-after-free in the WebRTC: Signaling component affecting Firefox before 146 and Firefox ESR before 140.6, and Thunderbird before 146/140.6. Public advisories (ALAS and Debian S/DLA notes) indicate memory-safety/allocations issues are part of the Firefox/Thu...

CVE-2025-27425

Firefox for iOS before version 136 is vulnerable to QR-code URL handling where scanning text in a QR code could open the URL without a user confirmation alert. This affects Firefox for iOS builds prior to 136; Mozilla MFSA2025-13 indicates related URL-spoofing/redirect concerns. Remediation: upda...

CVE-2025-6427

CVE-2025-6427 affects Firefox and Thunderbird prior to version 140. The issue is a bypass of the CSP connect-src directive via manipulation of subdocuments, which could also conceal network connections from DevTools Network tab. Affected products: Firefox < 140 and Thunderbird

CVE-2026-6772

CVE-2026-6772 affects the NSS Libraries component, specifically an incorrect boundary condition in NSS Libraries. The vulnerability is exploitable via network access with no user interaction and no privileges required, with a CVSS v3.1 base score of 7.5 (High). Affected products/contexts include ...

CVE-2026-8093

CVE-2026-8093 concerns memory-safety bugs in Firefox 150.0.1. The gathered records describe memory corruption clues and state that, with sufficient effort, some flaws could have allowed arbitrary code execution. Mozilla's advisory confirms the issue was fixed in Firefox 150.0.2. Affected software...

CVE-2009-4102

The CVE-2009-4102 entry concerns the Sage Firefox extension (1.4.3 and earlier) which processes feed descriptions with chrome privileges, enabling remote command execution and cross-domain scripting via crafted RSS/Atom feeds. Affected versions include Sage prior to 1.4.6; Debian’s advisory and J...

CVE-2012-4195

CVE-2012-4195 concerns Mozilla Firefox (and related Mozilla components) where nsLocation::CheckURL does not correctly determine the calling document/principal, enabling cross-site scripting (XSS) via crafted sites and certain add-on behaviors. Affected products/versions include Firefox before 16....

CVE-2021-4221

CVE-2021-4221 : Affects Firefox for Android. If a domain name contains a RTL (Right-to-Left) character, the domain could render to the right of the path, enabling user confusion and spoofing. The vulnerability is limited to Firefox for Android; other OSes are unaffected. The advisory notes Firefo...

CVE-2025-6435

CVE-2025-6435 corresponds to a Mozilla Firefox/Thunderbird issue where saving a response from Devtools Network tab via the Save As menu may fail to preserve the .download extension. This could allow a user to inadvertently run a malicious executable. The FreeBSD advisory also notes memory safety ...

CVE-2025-8035

CVE-2025-8035 affects Mozilla Firefox and Thunderbird desktop clients (Firefox/Firefox ESR and Thunderbird up to versions around 140.x/141.x). The connected sources describe memory-safety bugs in Firefox ESR 128.12, 140.0, and Firefox/Thunderbird 140, plus similar issues in Thunderbird ESR lines,...

CVE-2026-6777

CVE-2026-6777 is a general description of an issue in the Networking: DNS component, without explicit exploitation details. The connected advisories indicate a fix in Firefox 150 and Thunderbird 150, and Fedora advisories recommend updating NSS to 3.122.1 along with Firefox to 150.0. The ENISA/EU...

CVE-2026-6785

CVE-2026-6785 affects memory-safety bugs in Mozilla Firefox/Thunderbird components across Firefox ESR 115.34, ESR 140.9, Thunderbird ESR 140.9, Firefox 149, and Thunderbird 149. The issues potentially allow memory corruption and could enable arbitrary code execution; Mozilla fixed these bugs in F...

CVE-2025-8033

The CVE-2025-8033 issue is a memory-safety bug in Mozilla’s JavaScript engine where closing generators could be resumed, causing a null pointer dereference. Affected products include Firefox and Thunderbird forks across multiple release lines (Firefox < 141, ESR tracks <115.26, <128.13, ...

CVE-2025-9180

CVE-2025-9180 describes a same-origin policy bypass in the Graphics: Canvas2D component affecting Firefox and Thunderbird. Affected versions include Firefox and Thunderbird before 142, and ESR channels before 115.27, 128.14, or 140.2. Several connected advisories confirm the same issue and provid...

CVE-2026-6770

CVE-2026-6770 concerns an issue in the Storage: IndexedDB component affecting Firefox and Thunderbird. The initial entry notes an “Other issue in the Storage: IndexedDB component” and states it was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. Connected adviso...

CVE-2012-4217

CVE-2012-4217 is a use-after-free in Mozilla Firefox <17.0, Thunderbird <17.0, and SeaMonkey

CVE-2014-1494

CVE-2014-1494 concerns multiple memory-safety vulnerabilities in the browser engine of Mozilla Firefox prior to 28.0 and SeaMonkey prior to 2.25, with remote denial of service or potential arbitrary code execution via unknown vectors. The connected docs confirm that these issues are part of MFSA ...

CVE-2025-4089

CVE-2025-4089 is a vulnerability in Mozilla Firefox and Thunderbird related to insufficient escaping in the copy as cURL feature. The impact is local code execution on the user’s system if an attacker lures the user to run a crafted command. Affected software is Firefox and Thunderbird before 138...

CVE-2005-0587

CVE-2005-0587 : Firefox versions before 1.0.1 and Mozilla before 1.7.6 are affected. A remote attacker can trick a user into downloading a .LNK file twice, causing arbitrary files referenced by the first link to be overwritten. This stems from how the .LNK files are processed during download. Aff...

CVE-2013-0781

CVE-2013-0781 is a use-after-free in Mozilla’s nsPrintEngine::CommonPrint that affects Firefox, Thunderbird, and SeaMonkey versions prior to their listed fixes (Firefox before 19.0, Thunderbird before 17.0.3, SeaMonkey before 2.16). The underlying issue is a heap memory corruption/use-after-free ...

CVE-2017-7755

CVE-2017-7755 affects Mozilla Firefox and Thunderbird installers on Windows. The Firefox installer can be made to load malicious DLLs stored in the same directory as the installer, enabling privilege escalation when the installer runs with elevated privileges. Affected products/versions include F...