CVE-2026-12310

A memory safety bug exists in Firefox and Thunderbird , specifically affecting Firefox 152 , Firefox ESR 140.12 , Thunderbird 152 , and Thunderbird 140.12 . The vulnerability has been addressed in the specified versions. While the specific root cause component is not detailed in the primary descr...

CVE-2026-16354

CVE-2026-16354 is an information disclosure vulnerability within the Graphics: ImageLib component of the Mozilla Firefox and Thunderbird browsers. The flaw was addressed in Firefox versions 153 , ESR 115.38 , and ESR 140.13 , as well as Thunderbird versions 153 and 140.13 . No specific exploit de...

CVE-2026-84144

This vulnerability involves internally found bugs in Mozilla Thunderbird 154 and Thunderbird ESR 153.1 . The issues showed evidence of memory corruption or other security-relevant defects, which could potentially be exploited with sufficient effort. The flaws have been addressed in the release of...

CVE-2026-8974

Memory safety bugs in Firefox ESR 140.10 , Firefox 150 , Thunderbird 140.10 , and Thunderbird 150 can lead to memory corruption. If successfully exploited with significant effort, these vulnerabilities could allow an attacker to execute arbitrary code . The issues are addressed in Firefox 151 , F...

CVE-2012-4217

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

CVE-2016-1953

CVE-2016-1953 affects Mozilla Firefox before 45.0, tied to memory safety issues in the browser engine (notably js/src/jit/arm.cpp) that can cause memory corruption leading to remote code execution or denial of service. Public advisories (e.g., openSUSE/SUSE MFSA entries) relate this CVE to multip...

CVE-2026-12297

Mozilla products Firefox and Thunderbird are affected by a sandbox escape vulnerability caused by incorrect boundary conditions in the Networking component . This security flaw was addressed in the release of Firefox 152 , Firefox ESR 140.12 , Firefox ESR 115.37 , Thunderbird 152 , and Thunderbir...

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-2026-74958

Information disclosure in the WebRTC component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

CVE-2026-84137

CVE-2026-84137 involves a spoofing issue within the DOM: Core & HTML component . This vulnerability affects Mozilla Firefox and Mozilla Thunderbird . The issue has been addressed in Firefox 155 , Firefox ESR 153.2 , Thunderbird 155 , and Thunderbird 153.2 . No specific exploit details or remote e...

CVE-2026-8950

A Same-origin policy bypass exists in the Networking: HTTP component of the Firefox web browser and Thunderbird email client. The vulnerability is caused by a lack of mechanisms for verifying the source of data , which could allow an attacker to gain access to confidential data and compromise dat...

CVE-2026-92005

A Use-after-free vulnerability exists in the Audio/Video: Web Codecs component of Mozilla Firefox and Thunderbird . This flaw was addressed in Firefox 156 , Firefox ESR 140.16 , Firefox ESR 153.3 , Thunderbird 156 , Thunderbird 140.16 , and Thunderbird 153.3 . Exploitation details are not provide...

CVE-2007-2868

This CVE-2007-2868 entry concerns memory corruption in the JavaScript engine of Mozilla-derived products. Affected software includes Mozilla Firefox 1.5.x up to 1.5.0.12 and 2.x up to 2.0.0.4, Thunderbird 1.5.x up to 1.5.0.12 and 2.x up to 2.0.0.4, and SeaMonkey 1.0.9 and 1.1.2. Exploitation coul...

CVE-2008-2806

CVE-2008-2806 affects Mozilla Firefox <= 2.0.0.15 and SeaMonkey

CVE-2008-2808

Vulnerability CVE-2008-2808 affects Mozilla Firefox <2.0.0.15 and SeaMonkey

CVE-2010-0163

CVE-2010-0163 affects SeaMonkey before 1.1.19 and Mozilla Thunderbird before 2.0.0.24. The issue stems from a mail-attachment parser that performs casts and line termination incorrectly, enabling a remote attacker to crash the application or potentially execute arbitrary code via a crafted messag...

CVE-2012-0443

CVE-2012-0443 affects Mozilla Firefox (4.x–9.0), Thunderbird (5.0–9.0) and SeaMonkey prior to 2.7. The browser engine vulnerabilities allow remote attackers to cause memory corruption, crash the application, or potentially execute arbitrary code via unknown vectors; several advisories reference t...

CVE-2012-1964

CVE-2012-1964 corresponds to the certificate-warning clickjacking issue in Mozilla Firefox (4.x–12.0), Firefox ESR 10.x before 10.0.6, Thunderbird 5.0–12.0, and SeaMonkey before 2.10. The vulnerability arises from improper handling of clickjacking on the about:certerror page, allowing a MITM atta...

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-2025-4086

This vulnerability affects Thunderbird for Android and versions of Firefox prior to 138 . A specially crafted filename containing a large number of encoded newline characters can obscure the file's extension when displayed in the download dialog. The issue was resolved in Firefox 138 and Thunderb...

CVE-2026-12313

A vulnerability in the Security: Process Sandboxing component of Mozilla Firefox and Mozilla Thunderbird products allows for information disclosure and a sandbox escape . The issue has been addressed in Firefox 152 , Firefox ESR 140.12 , Thunderbird 152 , and Thunderbird 140.12 . Specific details...

CVE-2004-0757

CVE-2004-0757 describes a heap-based buffer overflow in the POP3 SendUidl capability of Mozilla < 1.7, Firefox < 0.9, and Thunderbird

CVE-2013-1706

CVE-2013-1706 is a stack-based buffer overflow in the Mozilla Maintenance Service (maintenanceservice.exe) used by Mozilla Firefox/Thunderbird. Affects Mozilla Firefox before 23.0, Firefox ESR 17.x before 17.0.8, Thunderbird before 17.0.8, and Thunderbird ESR 17.x before 17.0.8. The root cause is...

CVE-2013-5591

CVE-2013-5591 affects Mozilla Firefox before 25.0 (and ESR 24.x before 24.1), Thunderbird before 24.1, and SeaMonkey before 2.22, due to an unspecified browser‑engine vulnerability that could allow a remote attacker to cause memory corruption and an application crash, or possibly execute arbitrar...

CVE-2025-10527

A sandbox escape vulnerability exists in the Graphics: Canvas2D component of Mozilla products due to a use-after-free condition. This flaw could allow an attacker to execute arbitrary code remotely or cause a denial of service. The vulnerability affects Firefox versions earlier than 143, Firefox ...

CVE-2026-16403

Spoofing issue in the Address Bar component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

CVE-2026-2774

CVE-2026-2774 is an integer overflow in the Firefox Audio/Video component. Public sources indicate Firefox/ESR updates (Firefox 148, ESR 115.33, ESR 140.8) fix the flaw; affected products include Firefox and Thunderbird per accompanying advisories. The issue is rated high/critical by CVSS sources...

CVE-2026-74959

A mitigation bypass vulnerability exists in the Storage: Cache API component of Mozilla Firefox and Mozilla Thunderbird . The flaw allows attackers to bypass established security mitigations. The issue has been resolved in Firefox 154 , Firefox ESR 140.14 , Firefox ESR 153.1 , Thunderbird 154 , T...

CVE-2026-74969

A use-after-free vulnerability exists in the Layout: Text and Fonts component of the Mozilla Firefox and Thunderbird web browser and mail client. This flaw was addressed in the release of Firefox 154 , Firefox ESR 115.39 , Firefox ESR 140.14 , Firefox ESR 153.1 , Thunderbird 154 , Thunderbird 140...

CVE-2026-74974

CVE-2026-74974 describes a Same-origin policy bypass within the Graphics: ImageLib component of Mozilla products. The vulnerability affects Firefox and Thunderbird . This issue has been addressed in several versions, including Firefox 154 , Firefox ESR 115.39 , Firefox ESR 140.14 , Firefox ESR 15...

CVE-2026-84123

CVE-2026-84123 identifies a privilege escalation vulnerability caused by a use-after-free flaw in the Graphics: WebGPU component. This issue affects Mozilla Firefox , Mozilla Thunderbird , and associated packages. Remediation is available in Firefox 155 , Firefox ESR 153.2 , Thunderbird 155 , and...

CVE-2026-84138

A Denial-of-Service (DoS) vulnerability exists in the PDF Viewer component of Firefox and Thunderbird . The vulnerability has been addressed in Firefox 155 and Thunderbird 155 . While specific root cause details are not provided in the documents, the impact is a high availability loss as indicate...

CVE-2004-0906

CVE-2004-0906 is supported by multiple feeds: Mozilla’s XPInstall installer in Firefox (pre-Preview Release), Mozilla before 1.7.3, and Thunderbird before 0.8 sets insecure file permissions for files inside XPI packages. This can let a local user overwrite arbitrary files or execute code. Connect...

CVE-2008-5052

Mozilla Firefox 2.x (pre-2.0.0.18), Thunderbird 2.x (pre-2.0.0.18), and SeaMonkey 1.x (pre-1.1.13) are affected by CVE-2008-5052. The vulnerability arises in AppendAttributeValue in the JavaScript engine and is described as memory corruption that can cause a remote crash (Denial of Service) via u...

CVE-2010-1212

CVE-2010-1212 affects Mozilla Firefox 3.6.x (before 3.6.7) and Thunderbird 3.1.x (before 3.1.1). The issue arises from memory-safety defects in the browser engine’s tracing/recording paths, specifically in TraceRecorder::record_JSOP_BINDNAME, depth handling in TraceRecorder::record_JSOP_GETELEM, ...

CVE-2011-2980

CVE-2011-2980 is described as a binary planting vulnerability in ThinkPadSensor::Startup that could be exploited to load a malicious DLL into the running Firefox/Thunderbird process. The issue is documented as a potential local attack vector requiring write access to an unspecified directory to p...

CVE-2011-2997

CVE-2011-2997 affects Mozilla Firefox (browser engine) versions on Windows/Linux/macOS as Firefox 6, Thunderbird before 7.0, and SeaMonkey before 2.4. Root cause: memory corruption in the browser engine that can cause denial of service or potentially allow arbitrary code execution via unknown vec...

CVE-2013-0777

CVE-2013-0777 affects Mozilla Firefox, Thunderbird and SeaMonkey. The related openSUSE security update (openSUSE-SU-2013:0323-1) notes MFSA 2013-28 family fixes for Firefox/Thunderbird/SeaMonkey, including CVE-2013-0777, and lists fixed versions: Firefox 19.0, Thunderbird 17.0.3, SeaMonkey 2.16 (...

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...

CVE-2025-8044

Mozilla Firefox and Thunderbird (specifically versions 140 and Firefox ESR ) are affected by memory safety bugs. These vulnerabilities stem from memory corruption issues where operations are executed outside of the buffer in memory. A malicious actor could exploit these flaws to cause service int...

CVE-2026-12329

A memory safety bug was identified and fixed in Mozilla Thunderbird ESR 140.12 and Firefox ESR 140.12 . The vulnerability could potentially lead to arbitrary code execution if exploited. Remediation is provided via updated packages, such as thunderbird-140.12.0-1.amzn2.0.1 for Amazon Linux 2, and...

CVE-2026-16352

A sandbox escape vulnerability exists in the Disability Access APIs component of the Mozilla Firefox and Thunderbird browsers. This flaw is caused by a use-after-free condition. Impacting multiple components, this issue was addressed in Firefox 153 , Firefox ESR 115.38 , Firefox ESR 140.13 , Thun...

CVE-2026-16379

CVE-2026-16379 involves a privilege escalation vulnerability within the DOM: Content Processes component of the Mozilla Firefox browser and Thunderbird mail client. The issue allows for elevated privileges and was addressed in Firefox 153 , Firefox ESR 140.13 , Thunderbird 153 , and Thunderbird 1...

CVE-2026-2766

CVE-2026-2766 is a use-after-free in the JavaScript Engine: JIT component of Firefox/Firefox ESR that was fixed in Firefox 148, ESR 140.8, Thunderbird 148, and Thunderbird 140.8. Affected products in the provided documents include Firefox-based browsers and Thunderbird; multiple advisories (Astra...

CVE-2026-2779

CVE-2026-2779 covers incorrect boundary conditions in Networking: JAR within Firefox (and Firefox ESR). Public advisories indicate the issue affects Firefox before version 148 and Firefox ESR before 140.8, with Firefox 148/ESR 140.8 and Thunderbird updates mitigating it. The connected Amazon Linu...

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-2026-8953

A sandbox escape vulnerability exists in the Disability Access APIs component due to a use-after-free condition. This flaw affects the Firefox web browser (including Firefox ESR ) and the Thunderbird email client. Exploitation of this vulnerability could allow an attacker to escape the sandbox en...

CVE-2006-0295

CVE-2006-0295 affects Mozilla Firefox 1.5, Thunderbird 1.5 (when JavaScript is enabled in mail), and SeaMonkey older than 1.0. The vulnerability is a memory corruption caused by the QueryInterface method on built-in Location and Navigator objects, enabling remote code execution. Public references...

CVE-2006-1726

Technical details (affected product/versions, root cause, impact, remediation) for CVE-2006-1726 are not publicly provided in the supplied documents. Monitor for updates from vendors/security advisories.

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...