CVE-2012-5830

CVE-2012-5830 is a use-after-free vulnerability in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 on Mac OS X that allows remote attackers to execute arbitrary code via an HTML document. The con...

CVE-2013-0799

The CVE-2013-0799 issue is a local privilege-escalation vulnerability in the Mozilla Maintenance Service component of Mozilla Firefox (and Thunderbird) prior to certain 17.x/20.0-era builds on Windows. It stems from a buffer overflow when processing crafted arguments, allowing an unprivileged use...

CVE-2014-1553

Technical details about CVE-2014-1553 are not publicly provided in the connected documents. Monitor for updates from vendors/security advisories; current sources only reference the CVE among broader Firefox/Thunderbird vulnerabilities, with no explicit affected versions or fixes in the supplied d...

CVE-2015-0836

CVE-2015-0836 involves multiple memory-safety vulnerabilities in the Mozilla Firefox browser engine and related Thunderbird components. Affected products/versions include Firefox up to 36.0, Firefox ESR up to 31.x before 31.5, and Thunderbird up to 31.5. The flaws allow remote attackers to cause ...

CVE-2017-5414

CVE-2017-5414 affects Mozilla Firefox (and Thunderbird) prior to version 52. The file picker dialog can instantiate and display the wrong local default directory, potentially disclosing OS or local account name. Remediation from connected docs: upgrade to Firefox 52.0+ (and Thunderbird 52.0+ as a...

CVE-2017-5422

CVE-2017-5422 describes a denial-of-service crash triggered by repeatedly using the view-source: protocol within a single hyperlink. The issue affects Mozilla Firefox and Thunderbird prior to version 52. The root cause is tied to how the view-source: protocol was handled in a chained hyperlink, a...

CVE-2017-7804

CVE-2017-7804 involves the WindowsDllDetourPatcher destructor, which can be repurposed by malicious code in conjunction with other flaws to write arbitrary data to memory under attacker control on Windows. Public advisories for Mozilla Thunderbird and Firefox (MFSA 2017-18/19, MFSA 2017-20) descr...

CVE-2026-6747

A Use-after-free vulnerability exists in the WebRTC component of Mozilla Firefox , Firefox ESR , and the Thunderbird email client. This flaw allows a malicious actor to use memory after it has been freed, which could lead to a remote service failure or service interruptions. The vulnerability has...

CVE-2026-6770

A vulnerability exists in the Storage: IndexedDB component affecting Mozilla Firefox and Thunderbird . This issue can allow an attacker to compromise the confidentiality and accessibility of protected information. The vulnerability has been addressed in Firefox 150 , Firefox ESR 140.10 , Thunderb...

CVE-2026-6772

A heap buffer overflow exists in the NSS (Network Security Services) Libraries component due to incorrect boundary conditions. Specifically, the SSL_MAX_EXTENSIONS constant is set to 22, while 23 TLS extensions actually exist, leading to an off-by-one overflow during negotiation. This vulnerabili...

CVE-2026-74989

CVE-2026-74989 involves internally found bugs in Thunderbird 153 that may exhibit memory corruption or other security-relevant defects. While some of these defects could potentially be exploited with significant effort, the specific root causes are not detailed in the provided documents. The vuln...

CVE-2007-0775

CVE-2007-0775 involves multiple unspecified vulnerabilities in the layout engine of Mozilla Firefox (pre-1.5.0.10 and pre-2.0.0.2), Thunderbird (pre-1.5.0.10), and SeaMonkey (pre-1.0.8). The issues can cause a denial of service (crash) and potentially allow arbitrary code execution via certain ve...

CVE-2010-0169

Technical details about CVE-2010-0169 are not provided in the supplied documents. Please monitor official advisories and vendor patches for affected products and versions.

CVE-2011-2363

CVE-2011-2363 is a use-after-free vulnerability in the nsSVGPointList::AppendElement function affecting Mozilla Firefox before 3.6.18, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14. It can cause application crashes or possibly allow arbitrary code execution via vectors involving a user-...

CVE-2011-3651

CVE-2011-3651 involves Mozilla Firefox 7.0 and Thunderbird 7.0. The description cites multiple unspecified vulnerabilities in the browser engine that could allow remote attackers to cause a denial of service via memory corruption and application crash, or possibly execute arbitrary code through u...

CVE-2012-0474

CVE-2012-0474 describes a cross-site scripting (XSS) vulnerability in the docshell of Mozilla Firefox 4.x–11.0, Firefox ESR 10.x before 10.0.4, Thunderbird 5.0–11.0, Thunderbird ESR 10.x before 10.0.4, and SeaMonkey before 2.9. The issue is a Universal XSS (UXSS) flaw that lets remote attackers i...

CVE-2012-1961

CVE-2012-1961 affects Mozilla Firefox 4.x–13.0, Firefox ESR 10.x prior to 10.0.6, Thunderbird 5.0–13.0, Thunderbird ESR 10.x prior to 10.0.6, and SeaMonkey prior to 2.11. The issue is a UI security flaw in how duplicate values in the X-Frame-Options header are handled, which can enable remote att...

CVE-2012-1962

CVE-2012-1962 is a use-after-free in Mozilla’s JSDependentString::undepend that affects Firefox 4.x–13.0, ESR 10.x before 10.0.6, Thunderbird 5.0–13.0, and SeaMonkey before 2.11, enabling remote memory corruption and possibly arbitrary code execution. Connected advisories (e.g., MFSA2012-52 and r...

CVE-2017-7750

CVE-2017-7750 describes a use-after-free in video control operations when a element holds a reference to an older window that has been replaced in the DOM, leading to a potentially exploitable crash. Affected products and versions from the connected records include Mozilla Firefox < 54, Firef...

CVE-2018-5161

The CVE-2018-5161 issue affects Mozilla Thunderbird (including ESR branches) and is caused by crafted message headers that can cause the Thunderbird process to hang when receiving a message. Public records identify affected versions as Thunderbird ESR < 52.8 and Thunderbird

CVE-2025-3875

The Thunderbird email client contains a vulnerability (CVE-2025-3875) where it incorrectly parses addresses, allowing for sender spoofing if the mail server permits an invalid From header. For instance, if the header contains an invalid value like "Spoofed Name ", Thunderbird may treat "spoofed@e...

CVE-2026-16355

The JavaScript Engine: JIT component in Mozilla Firefox and Thunderbird is vulnerable to JIT miscompilation (CVE-2026-16355). This flaw can potentially lead to the execution of arbitrary code. The vulnerability has been addressed in Firefox 153 , Firefox ESR 115.38 , Firefox ESR 140.13 , Thunderb...

CVE-2026-6785

Memory safety bugs in Mozilla Firefox and Thunderbird allow for memory corruption , which could potentially be exploited to execute arbitrary code with sufficient effort. The affected versions include Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149, and Thunderbird 149. ...

CVE-2026-6786

Mozilla Firefox and Thunderbird are affected by memory safety bugs in versions Firefox ESR 140.9 , Thunderbird ESR 140.9 , Firefox 149 , and Thunderbird 149 . These bugs can lead to memory corruption , which might be exploited by a remote attacker to execute arbitrary code by reading data beyond ...

CVE-2012-3988

CVE-2012-3988 is a use-after-free vulnerability in Mozilla Firefox (pre-16.0), Firefox ESR (pre-10.0.8), Thunderbird (pre-16.0), Thunderbird ESR (pre-10.0.8), and SeaMonkey (pre-2.13). It can be triggered via mozRequestFullScreen with full-screen mode and navigation via history.back, potentially ...

CVE-2012-3989

CVE-2012-3989 affects Mozilla Firefox (and related Mozilla products) prior to version 16.0, Thunderbird prior to 16.0, and SeaMonkey prior to 2.13. The vulnerability is a crash caused by an invalid cast when using the instanceof operator on certain JavaScript objects, which could allow remote att...

CVE-2012-3995

CVE-2012-3995 affects Mozilla Firefox and related Mozilla applications. The vulnerability arises from the IsCSSWordSpacingSpace function in Firefox (and Firefox ESR 10.x, Thunderbird, SeaMonkey as listed) where an out-of-bounds read could be exploited to run arbitrary code or trigger a denial-of-...

CVE-2013-0762

CVE-2013-0762 is a use-after-free in imgRequest::OnStopFrame affecting Mozilla Firefox prior to 18.0 (and ESR 10.x before 10.0.12, ESR 17.x before 17.0.1), Thunderbird prior to 17.0.2, and SeaMonkey prior to 2.15. It can allow remote code execution or a denial of service via heap memory corruptio...

CVE-2017-7754

CVE-2017-7754 is an out-of-bounds read in WebGL when processing a malicious ImageInfo object during WebGL operations. Affected products/versions per connected docs: Firefox versions prior to 54 and Firefox ESR prior to 52.2, and Thunderbird prior to 52.2. The vulnerability stems from an improper ...

CVE-2025-3909

Mozilla Thunderbird's handling of the X-Mozilla-External-Attachment-URL header allows for JavaScript execution in the file:/// context. An attacker can craft a nested email attachment (message/rfc822 ) with a content type of application/pdf . Thunderbird may incorrectly render this as HTML when o...

CVE-2026-6749

The Graphics: Canvas2D component in Mozilla Firefox and the Thunderbird email client is vulnerable to an information disclosure due to the use of uninitialized memory . A malicious actor could remotely disclose sensitive information by exploiting this flaw. This vulnerability has been addressed i...

CVE-2008-1233

CVE-2008-1233 affects Mozilla Firefox <2.0.0.13, Thunderbird <2.0.0.13, and SeaMonkey

CVE-2008-5012

CVE-2008-5012 affects Mozilla Firefox 2.x, Thunderbird 2.x, and SeaMonkey 1.x (before versions 2.0.0.18 / 1.1.13) where processing a canvas element and an HTTP redirect can bypass the same-origin policy, allowing access to images not directly accessible to the attacker. Several connected sources ...

CVE-2012-0446

CVE-2012-0446 maps to multiple XSS flaws in Mozilla Firefox (4.x–9.0), Thunderbird (5.0–9.0), and SeaMonkey before 2.7, tied to improper XPConnect frame-script restrictions. Connected advisories confirm affected products and patches: openSUSE/SUSE updates reference Firefox ESR packages (e.g., fir...

CVE-2012-0472

CVE-2012-0472 is present in the MiracleLinux AXSA:2012-874:05 advisory, which mentions Mozilla Firefox 4.x–11.0 (and related products like Thunderbird/SeaMonkey in affected lines) and links the issue to the cairo-dwrite font rendering code. The description in the initial document (and mirrored in...

CVE-2012-1938

CVE-2012-1938 affects Mozilla's browser engine and is described in the MiracleLinux AXSA:2012-857 advisory as multiple vulnerabilities in Firefox (and related components) that could allow memory corruption and remote code execution. Specifically, it impacts Mozilla Firefox before 13.0, Thunderbir...

CVE-2012-1944

CVE-2012-1944 affects Mozilla Firefox 4.x–12.0, Firefox ESR 10.x before 10.0.5, Thunderbird 5.0–12.0, Thunderbird ESR 10.x before 10.0.5, and SeaMonkey before 2.10. The underlying issue is CSP not blocking inline event handlers, enabling potential cross-site scripting via crafted HTML documents. ...

CVE-2012-1945

CVE-2012-1945 affects Mozilla Firefox 4.x–12.0, Firefox ESR 10.x before 10.0.5, Thunderbird 5.0–12.0, Thunderbird ESR 10.x before 10.0.5, and SeaMonkey before 2.10. The issue occurs when an HTML document loads a shortcut file (.lnk) inside an IFRAME, demonstrated by a network share on Windows or ...

CVE-2013-0774

CVE-2013-0774 affects Mozilla Firefox

CVE-2017-5412

CVE-2017-5412 is a buffer overflow read in SVG filter color value processing that results in data exposure. Affected products are Firefox and Thunderbird versions older than 52. The root cause is a memory safety/overflow issue in SVG filter handling. Remediation is to update to Firefox 52.0+ and ...

CVE-2026-12304

A same-origin policy bypass vulnerability exists in the Networking: Cookies component of Firefox and Thunderbird . This flaw allows for the circumvention of security boundaries designed to isolate web content. The vulnerability has been addressed in Firefox 152 , Firefox ESR 140.12 , Thunderbird ...

CVE-2009-2463

CVE-2009-2463 is a browser vulnerability described for Mozilla Firefox before 3.0.12 (and related Thunderbird/SeaMonkey components in older advisories) involving integer overflows in PL_Base64Decode/PL_Base64Encode within nsprpub/lib/libc/src/base64.c. The issue can trigger memory corruption and ...

CVE-2012-0447

CVE-2012-0447 affects Mozilla Firefox 4.x–9.0, Mozilla Thunderbird 5.0–9.0, and SeaMonkey

CVE-2012-0463

The CVE-2012-0463 issue affects Mozilla Firefox browser engine in Firefox before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1.20 and 5.0 through 10.0, Thunderbird ESR before 10.0.3, and SeaMonkey before 2.8. The flaw is in the nsWindow implementation not val...

CVE-2015-2735

CVE-2015-2735 affects Mozilla Firefox (before 39.0), Firefox ESR (31.x before 31.8 and 38.x before 38.1), and Thunderbird (before 38.1). The issue is in nsZipArchive.cpp where memory locations are accessed in an unintended way when processing crafted ZIP archives, which could allow a remote attac...

CVE-2018-5162

CVE-2018-5162 is a Thunderbird information-disclosure vulnerability where plaintext of decrypted emails can leak through the src attribute of remote images or links. Affected products include Thunderbird ESR and Thunderbird before version 52.8. The root cause is plaintext leakage via image/src ha...

CVE-2024-8394

CVE-2024-8394 affects Mozilla Thunderbird prior to version 128.2. The issue is a use-after-free triggered when aborting the verification of an OTR chat session, potentially causing a crash. A fix is available in Thunderbird 128.2 and later; affected users should upgrade. This vulnerability is con...

CVE-2026-74934

A site isolation issue exists in the Graphics: CanvasWebGL component of the Mozilla Firefox and Mozilla Thunderbird browsers. This vulnerability affects several versions, including Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, and corresponding Thunderbird versions 154, ...

CVE-2026-75874

A sandbox escape vulnerability exists in the Remote Settings Client component of the Mozilla Firefox and Thunderbird browsers. This flaw allows an attacker to bypass security restrictions, potentially leading to the execution of arbitrary code. The issue is present in several versions, including ...

CVE-2026-8093

Memory safety bugs in Firefox version 150.0.1 and the Thunderbird email client allow for memory corruption. These vulnerabilities could be exploited by a remote attacker with sufficient effort to execute arbitrary code due to operations escaping the buffer in memory. These issues have been addres...