CVE-2026-6762

CVE-2026-6762 is a spoofing issue in the DOM: Core & HTML component. Connected advisories confirm it affects Firefox/Thunderbird stacks and was fixed in Firefox 150, ESR 115.35, ESR 140.10, Thunderbird 150, and Thunderbird 140.10. The CVSS 3.1 base score is 6.3 (MEDIUM) with NETWORK attack vector...

CVE-2026-6765

CVE-2026-6765 affects Firefox and Thunderbird. The vulnerability is an information disclosure in the Form Autofill component. Root cause details are not provided beyond disclosure, but the issue is mitigated by fixes in Firefox 150 , Firefox ESR 140.10 , Thunderbird 150 , and Thunderbird 140.10 ....

CVE-2026-6771

CVE-2026-6771 is a mitigation bypass in the DOM: Security component. The affected products include Firefox and Thunderbird; the vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. Actionability: update to the listed versions to remediate. Connected...

CVE-2026-6779

CVE-2026-6779 refers to an “Other issue in the JavaScript Engine component” that affects Firefox and Thunderbird. The vulnerability was fixed in Firefox 150 and Thunderbird 150; Fedora advisories also call for updates to NSS and Firefox 150 across affected distros. The connected docs do not provi...

CVE-2026-7324

CVE-2026-7324 involves memory safety bugs in Firefox 150.0.0 and Thunderbird 150.0.0. Some bugs show evidence of memory corruption, with the description noting that, with sufficient effort, some could be exploited to run arbitrary code. The vulnerability was fixed in Firefox 150.0.1. The connecte...

CVE-2011-2991

CVE-2011-2991 affects the Mozilla browser engine in Firefox 4.x–5, SeaMonkey 2.x prior to 2.3, and Thunderbird prior to 6. The issue arises from improper JavaScript handling, enabling remote attackers to trigger memory corruption and cause a crash, with potential arbitrary code execution via unsp...

CVE-2011-3654

CVE-2011-3654 : The browser engine in Mozilla Firefox before 8.0 and Thunderbird before 8.0 mishandles links from SVG mpath elements to non-SVG elements, enabling memory corruption and application crash and possibly arbitrary code execution via unspecified vectors. Impact is a high-severity memor...

CVE-2026-6755

CVE-2026-6755 describes a mitigation bypass in the DOM: postMessage component. Affected products reference Mozilla Firefox and Thunderbird; the vulnerability was fixed in Firefox 150 and Thunderbird 150. The CVSSv3.1 base score is 6.5 (Network attack vector, Low attack complexity, Privileges requ...

CVE-2026-6776

CVE-2026-6776 is a boundary-condition vulnerability in the WebRTC: Networking component that affected Firefox/Thunderbird, fixed in Firefox 150 (and ESR 140.10) and Thunderbird 150 (and ESR 140.10). The explicit issue is an incorrect boundary handling in the WebRTC Networking path, with CVSSv3.1 ...

CVE-2004-0907

CVE-2004-0907 affects Linux installs of Mozilla Firefox (pre-Preview Release), Mozilla (pre-1.7.3), and Thunderbird (pre-0.8). The root cause is insecure permissions on files created during the installation tarball extraction, which could let local users overwrite files and execute arbitrary code...

CVE-2010-0161

CVE-2010-0161 affects Thunderbird (before 2.0.0.24) and SeaMonkey (before 1.1.19) on Windows, where the nsAuthSSPI::Unwrap function in extensions/auth/nsAuthSSPI.cpp can be triggered by data from a remote SMTP/IMAP/POP server using SSPI. This may cause heap memory corruption and application crash...

CVE-2025-8044

CVE-2025-8044 corresponds to memory safety bugs found in Firefox 140 and Thunderbird 140, with memory corruption evidence and a potential to allow arbitrary code execution. Affected products are Firefox and Thunderbird versions earlier than 141. The consolidated sources indicate the issues are me...

CVE-2026-6748

CVE-2026-6748 concerns uninitialized memory in Mozilla’s Audio/Video: Web Codecs component. The Initial CVE page notes fixes in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. Connected advisories from Debian (DSA-6225/DSA-6229) and DLA-4549/4546/NASL entries confirm mul...

CVE-2026-6763

CVE-2026-6763 is a mitigation bypass in the File Handling component that was fixed in Firefox 150 and Firefox ESR 140.10, and in Thunderbird 150 and Thunderbird 140.10. Connected advisories (ALAS2FIREFOX-2026-058, ALSA-2026:19348, ALSA-2026:15892, ALSA-2… etc.) corroborate that Thunderbird/firefo...

CVE-2002-2437

The CVE-2002-2437 entry describes an information-disclosure flaw in the JavaScript implementation of Mozilla Firefox (before 4.0), Thunderbird (before 3.3), and SeaMonkey (before 2.1). The vulnerability arises from improper restrictions on the values returned by getComputedStyle, enabling remote ...

CVE-2011-3653

CVE-2011-3653 affects Mozilla Firefox < 8.0 and Thunderbird

CVE-2011-3664

Affected software: Mozilla Firefox, Thunderbird, and SeaMonkey on Mac OS X. Vulnerable behavior: plugins can delete a DOM frame, triggering an incorrect pointer dereference that may crash the application (DoS) and potentially other unspecified impacts. Severity: base CVSS 2.0 score 6.8 (MEDIUM). ...

CVE-2012-1943

CVE-2012-1943 involves an untrusted search path vulnerability in Updater.exe of the Mozilla Updater Service on Windows, affecting Firefox 12.0, Thunderbird 12.0, and SeaMonkey 2.9. The issue allows local privilege escalation through loading a Trojan horse wsock32.dll located in an application dir...

CVE-2005-4809

CVE-2005-4809 affects Mozilla Firefox 1.0.1 (and possibly other Mozilla products such as Mozilla and Thunderbird) and describes a UI spoofing issue where an attacker can spoof the URL shown in the Status Bar. The root cause is a crafted A HREF tag that includes a TABLE tag containing another A ta...

CVE-2008-5430

CVE-2008-5430 affects Mozilla Thunderbird 2.0.14 and is tied to handling of multipart/mixed e-mails with many MIME parts and possibly many headers of the form Content-type: message/rfc822;. The root cause is improper processing leading to denial of service through large messages (resource/stack c...

CVE-2009-4629

Mozilla Necko DNS Information Disclosure (CVE-2009-4629) affects Thunderbird 3.0.1, SeaMonkey, and related apps. The issue is DNS prefetching triggered even for APP_TYPE_MAIL/APP_TYPE_EDITOR, enabling an attacker to infer a user’s network location by logging DNS requests (e.g., when reading text/...

CVE-2026-12294

CVE-2026-12294 concerns a Sandbox escape in the DOM: Workers component found in Mozilla products. The vulnerability affects Firefox (including Firefox 152 and ESR branches 140.12 and 115.37) and Thunderbird (152 and 140.12). The underlying issue is a sandbox escape in the Workers component, with ...

CVE-2026-6753

CVE-2026-6753 : This is a memory/boundary-condition vulnerability in the WebRTC component. The initial report identifies the root cause as incorrect boundary conditions in the WebRTC component, with an impact profile of Confidentiality, Integrity, and Availability all rated Low, and an overall CV...

CVE-2026-6782

This CVE (CVE-2026-6782) affects the IP Protection component and is addressed by upgrading Firefox to version 150 and Thunderbird to version 150 (per multiple advisories). Public records in Fedora/Nessus notes indicate an information disclosure vulnerability resolved by these upgrades; no detaile...

CVE-2005-0148

Thunderbird

CVE-2025-10527

The CVE-2025-10527 entry corresponds to a sandbox escape via use-after-free in the Graphics: Canvas2D component. Affected products include Firefox <143, Firefox ESR <140.3, Thunderbird <143, and Thunderbird

CVE-2025-10533

CVE-2025-10533 describes an integer overflow in the SVG component affecting Firefox before 143, Firefox ESR before 115.28 and 140.3, Thunderbird before 143 and 140.3. Connected sources confirm the same vulnerability details. The Astra Linux security bulletin echoes this issue and lists the affect...

CVE-2006-0836

CVE-2006-0836 : Affected product is Mozilla Thunderbird 1.5. The issue allows user-assisted attackers to cause an unspecified denial of service by convincing a user to import an LDIF file containing a long field (demonstrated by a long homePhone field) into the address book. The available connect...

CVE-2026-6758

CVE-2026-6758: Use-after-free in the JavaScript: WebAssembly component. Affected: Firefox and Thunderbird; fixed in Firefox 150 and Thunderbird 150. CVSS v3.1 base score 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). No explicit exploit details provided in the connected documents.

CVE-2025-10536

Mode C: CVE-2025-10536 is an Information disclosure in the Networking: Cache component affecting Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird

CVE-2026-12311

CVE-2026-12311 is a information-disclosure and sandbox-escape issue in Mozilla’s Security: Sandbox/Process Sandboxing affecting Firefox and related components. The initial entry states impact as information disclosure with sandbox escape; connected advisories confirm affected products include Fir...

CVE-2026-6761

CVE-2026-6761 — Privilege escalation in the Networking component (Microsoft/ Mozilla naming in documents shows Firefox/Thunderbird exposure). Affected products include Firefox (fixed in Firefox 150 and Firefox ESR 140.10) and Thunderbird (fixed in Thunderbird 150 and Thunderbird 140.10). The CVSS...

CVE-2026-12293

CVE-2026-12293 is a use-after-free in the Graphics: WebGPU component. The flaw is fixed in Firefox 152 and Thunderbird 152. Sources from NVD/Mozilla advisories confirm the issue and the patch versions; exploit details are not provided in the supplied documents. The vulnerability is classified wit...

CVE-2026-2758

CVE-2026-2758 is a memory-safety use-after-free in the Mozilla Firefox JavaScript GC component. Public details show it affects Firefox and Thunderbird families and was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. Multiple connected advisorie...

CVE-2026-2797

CVE-2026-2797 is a use-after-free in the JavaScript: GC component affecting Firefox and Thunderbird. The issue was fixed in Firefox 148 and Thunderbird 148. Public exploits are noted in some sources; CVSS metrics indicate a high-severity, memory-safety class vulnerability with network attack vect...

CVE-2026-5731

CVE-2026-5731 refers to memory-safety bugs across Mozilla Firefox/Thunderbird products. The initial entry lists memory corruption possibilities in Firefox ESR 115.34.0 and 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1, and Thunderbird 149.0.1, with fixes in Firefox 149.0.2, Firefox ESR 115.34...

CVE-2026-6783

CVE-2026-6783 involves an incorrect boundary handling and integer overflow in the Audio/Video Playback component. Affected software is Mozilla Firefox and Thunderbird; the issue is mitigated by upgrading to Firefox 150 and Thunderbird 150, which include the fix. The CVSS-based reports indicate a ...

CVE-2026-12304

CVE-2026-12304 involves a Same-origin policy bypass in the Networking: Cookies component affecting Mozilla products. The vulnerability is documented for Firefox and Thunderbird (including firefox-esr and Thunderbird ESR variants) with fixes implemented in Firefox 152, Firefox ESR 140.12, Thunderb...

CVE-2026-6750

CVE-2026-6750 is a privilege-escalation in the Graphics: WebRender component affecting Mozilla Firefox/Firefox ESR and Thunderbird. The vulnerability is fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10 (with Thunderbird 150 and Thunderbird 140.10 also listed in the advisory set). ...

CVE-2026-12295

CVE-2026-12295 describes a sandbox escape in the DOM: Navigation component affecting Mozilla Firefox and Thunderbird. The vulnerability is fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. The entry lists a CVSS v3.1 base score of 9.6 (CRITICAL...

CVE-2026-6775

CVE-2026-6775: Affects the WebRTC component with incorrect boundary conditions. Urban/Thunderbird users should upgrade to Firefox 150 and Thunderbird 150 where the issue is fixed. The vulnerability entry specifies this CVE’s root cause and that remediation is through upgrading to the listed versi...

CVE-2026-6774

CVE-2026-6774 is a mitigation bypass in the DOM: Security component that affects Firefox and Thunderbird. The issue is described as a bypass of mitigation in the DOM security stack and was fixed in Firefox 150 and Thunderbird 150. The provided metadata indicates a CVSS v3.1 base score of 5.4 (Med...

CVE-2026-12329

CVE-2026-12329 is a memory-safety bug fixed in Thunderbird ESR 140.12 (and Firefox ESR 140.12). Affected products include Thunderbird/Firefox ESR 140.12; CVSSv3.1 base score 7.5 (HIGH) with NETWORK attack vector, high confidentiality/integrity/availability impact, user interaction required. Remed...

CVE-2026-12291

CVE-2026-12291 is a use‑after‑free defect in the Networking: HTTP component that affects Firefox and Thunderbird products. The vulnerability is fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. The CVSS 3.1 base score is 8.8 (HIGH) with network...

CVE-2026-2761

CVE-2026-2761 is a sandbox-escape vulnerability in the Graphics: WebRender component of Mozilla Firefox/Thunderbird. The issue is fixed in Firefox 148, Firefox ESR 115.33 and 140.8, as well as Thunderbird 148 and Thunderbird 140.8 per the provided advisories. Connected documents confirm this exac...

CVE-2026-2792

CVE-2026-2792 involves memory safety bugs found in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some flaws showed memory corruption indicators and could potentially be exploited to run arbitrary code; Mozilla fixed these in Firefox 148, Firefox ESR 140.8, Thunderbird...

CVE-2026-6751

CVE-2026-6751 is a vulnerability described as an uninitialized memory issue in the Audio/Video: Web Codecs component. The primary CVE entry references Firefox (fixed in Firefox 150 and Firefox ESR 140.10), Thunderbird (fixed in Thunderbird 150 and Thunderbird 140.10). Connected advisories confirm...

CVE-2025-10528

CVE-2025-10528 is a sandbox escape in Mozilla Firefox/Thunderbird caused by undefined behavior due to an invalid pointer in Graphics: Canvas2D. Affected products include Firefox < 143 and Firefox ESR < 140.3, Thunderbird < 143 and Thunderbird

CVE-2025-10531

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

CVE-2026-12290

A memory-safety vulnerability affecting Mozilla Thunderbird and related Firefox components has been fixed in Thunderbird 152 and Firefox 152 (and ESR branches 140.12 and 115.37). The CVE-2026-12290 entry, and associated related CVEs cited in SUSE/OSV/Debian/Bugzilla/MFSA advisories, indicate a me...