CVE-2018-12373

CVE-2018-12373 concerns Mozilla Thunderbird prior to 52.9.1, where decrypted S/MIME parts hidden with CSS or the plaintext HTML tag can leak plaintext when included in a HTML reply/forward. The issue is categorized as an information disclosure vulnerability affecting Thunderbird versions older th...

CVE-2022-3033

CVE-2022-3033 affects Thunderbird when replying to crafted HTML emails containing a meta tag with http-equiv="refresh" and a content URL. This can trigger a network request and, with other HTML elements, allow JavaScript in the message compose context to read/modify the compose window (including ...

CVE-2026-16356

A sandbox escape vulnerability exists in the Disability Access APIs component of Mozilla Firefox and Thunderbird due to a use-after-free flaw. This vulnerability was addressed in Firefox 153 , Firefox ESR 115.38 , Firefox ESR 140.13 , Thunderbird 153 , and Thunderbird 140.13 . Exploitation detail...

CVE-2013-0744

CVE-2013-0744 is a use-after-free in the TableBackgroundPainter::TableBackgroundData::Destroy function of Mozilla Firefox prior to 18.0 (and Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2), Thunderbird prior to 17.0.2/ESR 10.x before 10.0.12/17.x before 17.0.2, and SeaMonkey prior to 2.15...

CVE-2013-0783

CVE-2013-0783 refers to multiple unspecified vulnerabilities in the Mozilla Firefox browser engine (Firefox <19.0, ESR 17.x <17.0.3, Thunderbird <17.0.3, SeaMonkey

CVE-2014-1530

CVE-2014-1530 affects Mozilla Firefox family components (Firefox before 29.0, ESR 24.x before 24.5, Thunderbird before 24.5, SeaMonkey before 2.26). The issue arises in the docshell loading logic: a crafted site performing history navigation can set a spoofed baseURI, enabling cross-site scriptin...

CVE-2016-5291

CVE-2016-5291 is a local-bypass vulnerability where a attacker could load arbitrary local content by abusing local shortcut files, bypassing same-origin policy in Mozilla Firefox and Thunderbird products. Public details in connected docs indicate affected versions include Thunderbird < 45.5, F...

CVE-2012-3972

CVE-2012-3972 affects the XSLT format-number functionality in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12. The vulnerability allows remote attackers to obtain sensitive information via unspecif...

CVE-2017-7778

CVE-2017-7778 relates to multiple vulnerabilities in Graphite2 (upstream 1.3.10). The issues include out-of-bounds reads, buffer overflow reads/writes, and use of uninitialized memory in Graphite2, and are addressed by upgrading to Graphite2 1.3.10. Publicly affected products in the CVE record in...

CVE-2023-50761

Affected software: Mozilla Thunderbird. Issue: S/MIME signature may be accepted despite mismatching signature creation date with message date/time, enabling impression of a different send date. Root cause: Thunderbird

CVE-2025-1935

A web page could trick a user into setting that site as the default handler for a custom URL protocol. This vulnerability affects Firefox < 136 , Firefox ESR < 128.8 , Thunderbird < 136 , and Thunderbird

CVE-2026-12289

The Graphics: WebRender component in Mozilla Firefox and Mozilla Thunderbird is susceptible to a privilege escalation vulnerability. This flaw allows attackers to gain elevated privileges on a system. The issue has been addressed in several releases, including Firefox 152 , Firefox ESR 140.12 , F...

CVE-2017-5430

CVE-2017-5430 refers to memory-safety bugs reported in Firefox 52/52 ESR and Thunderbird 52 that could, with enough effort, be exploited to run arbitrary code. Affected products include Firefox (versions < 53), Firefox ESR (< 52.1), and Thunderbird (

CVE-2018-5178

CVE-2018-5178: A buffer overflow during UTF-8 to Unicode string conversion in JavaScript can occur when a vulnerable legacy extension is used. Affected products include Thunderbird ESR and Firefox ESR up to version 52.8 (ESR branches); Thunderbrid/Firefox ESR

CVE-2022-3032

Thunderbird has a vulnerability where receiving an HTML email containing an iframe with a srcdoc attribute does not block remote objects in the nested document; the network is accessed and items like images/videos are loaded and displayed. Affected versions are Thunderbird < 102.2.1 and Thunde...

CVE-2026-12291

A use-after-free vulnerability exists in the Networking: HTTP component of Mozilla products. This flaw affects Firefox and Thunderbird , specifically impacting versions prior to Firefox 152 , Firefox ESR 140.12 , Firefox ESR 115.37 , Thunderbird 152 , and Thunderbird 140.12 . Exploitation of this...

CVE-2012-3960

CVE-2012-3960 is a use-after-free in mozSpellChecker::SetCurrentDictionary that affects Mozilla Firefox <15.0, Firefox ESR <10.0.7, Thunderbird <15.0 / ESR, and SeaMonkey

CVE-2012-4194

The CVE-2012-4194 issue affects Mozilla Firefox and related Mozilla components where the valueOf shadowing of the location object (window.location) enables cross-site scripting via plugin vectors. Affected software and versions (stated in the provided sources) include: Mozilla Firefox before 16.0...

CVE-2018-5183

CVE-2018-5183 is a memory corruption vulnerability in Mozilla’s Skia library used by Firefox/Thunderbird ESR 52.x. The issue involves invalid reads/writes during graphic operations and was addressed by backporting changes to Skia, with fixed versions shipped as Thunderbird/Firefox ESR 52.8.0 (and...

CVE-2026-12295

A sandbox escape vulnerability exists in the DOM: Navigation component of the Mozilla Firefox and Thunderbird applications. This flaw allows an attacker to bypass sandbox restrictions, potentially leading to significant impact on the host system. The vulnerability has been addressed in Firefox 15...

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-2013-5616

CVE-2013-5616 is a use-after-free in Mozilla Firefox before 26.0 (also affects ESR 24.x before 24.2, Thunderbird before 24.2, SeaMonkey before 2.23) triggered by nsEventListenerManager::HandleEventSubType. Exploitation could lead to remote code execution or a denial of service due to heap memory ...

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-2012-0442

CVE-2012-0442 covers multiple memory-safety vulnerabilities in the Mozilla browser engine affecting Firefox before 3.6.26 and 4.x–9.0, Thunderbird before 3.1.18 and 5.0–9.0, and SeaMonkey before 2.7. The issues can cause memory corruption, application crashes, or potentially remote code execution...

CVE-2012-3986

CVE-2012-3986 affects Mozilla Firefox prior to 16.0 (and Firefox ESR 10.x prior to 10.0.8), Thunderbird prior to 16.0, and SeaMonkey before 2.13. The root cause is that certain DOMWindowUtils (nsDOMWindowUtils) methods were not protected by security checks, allowing remote JavaScript to bypass in...

CVE-2013-0780

CVE-2013-0780 is a use-after-free vulnerability in Mozilla Firefox related to the nsOverflowContinuationTracker::Finish function. It affects Firefox before 19.0, Firefox ESR 17.x before 17.0.3, Thunderbird before 17.0.3, Thunderbird ESR 17.x before 17.0.3, and SeaMonkey before 2.16. An attacker c...

CVE-2016-9066

CVE-2016-9066 is a Mozilla Firefox-related issue. IBM notes it as a buffer/ memory-safety problem in Firefox shipped with IBM SONAS; root cause described as a buffer overflow due to an integer overflow in nsScriptLoadHandler. Affected products include Thunderbird <45.5, Firefox ESR <45.5, a...

CVE-2017-5470

CVE-2017-5470 involves memory safety bugs reported in Firefox 53 and Firefox ESR 52.1, with memory corruption evidence that could enable arbitrary code execution. The entry covers affected versions Firefox < 54, Firefox ESR < 52.2, and Thunderbird

CVE-2018-12391

CVE-2018-12391 affects Firefox for Android: during HTTP Live Stream playback, audio data can be accessed across origins due to a flaw in the underlying Android service. The vulnerability is addressed by treating all HLS streams as cross-origin and opaque. Affected products/versions include Firefo...

CVE-2018-12374

Mozilla Thunderbird before 52.9.1 is affected by multiple issues (CVE-2018-5188, CVE-2018-12359 through CVE-2018-12374) including information disclosure and memory safety bugs. The specific CVE-2018-12374 vulnerability allows plaintext of decrypted emails to leak when a user submits an embedded f...

CVE-2023-37207

The provided connected documents confirm CVE-2023-37207 affects Firefox and Thunderbird (Firefox < 115, ESR < 102.13, Thunderbird

CVE-2026-16387

A site isolation issue exists in the Networking component of the Firefox web browser and Thunderbird mail client. This vulnerability was addressed in Firefox 153 , Firefox ESR 140.13 , and Thunderbird 153 (including Thunderbird 140.13 ). Exploitation details are not provided in the documentation....

CVE-2007-0009

CVE-2007-0009 describes a stack-based buffer overflow in the SSLv2 handling of the Mozilla Network Security Services (NSS) library, caused by improper handling of the Client Master Key length values. This can enable remote attackers to execute arbitrary code in the context of the affected process...

CVE-2013-5613

Mode C: Detailed vulnerability note for CVE-2013-5613. Affected product/variant: Mozilla Firefox components shipped in MiracleLinux 3 (firefox-24.4.0-1.0.1.AXS3) per AXSA:2014-233:01. Root cause: Use-after-free in PresShell::DispatchSynthMouseMove, linked to RestyleManager::GetHoverGeneration, en...

CVE-2014-1529

CVE-2014-1529 affects Mozilla Firefox and related Mozilla products (Firefox before 29.0, ESR 24.x before 24.5, Thunderbird before 24.5, SeaMonkey before 2.26). The Web Notification API vulnerability allows remote attackers to bypass source-component restrictions and run arbitrary JavaScript in a ...

CVE-2026-12324

Mozilla products, including Firefox , Firefox ESR , and Thunderbird , are affected by CVE-2026-12324 due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability has been addressed in Firefox 152 , Firefox ESR 140.12 , Thunderbird 152 , and Thunderbird 140.12 . ...

CVE-2026-74939

A privilege escalation vulnerability exists in the DOM: Navigation component of Mozilla Firefox and Mozilla Thunderbird . The root cause is that the parent process fails to reject a content-set RemoteTypeOverride field when deserializing a nsDocShellLoadState from content→parent IPDL messages. Th...

CVE-2009-1306

CVE-2009-1306 affects Mozilla Firefox (before 3.0.9), Thunderbird, and SeaMonkey due to an improper handling of the Content-Disposition header in inner jar: URIs. The inner URI’s Content-Disposition: attachment can enable remote XSS and possibly other attacks when a malicious .jar is uploaded. Co...

CVE-2011-3659

CVE-2011-3659 is a use-after-free in Mozilla Firefox (before 3.6.26 and 4.x through 9.0), Thunderbird (before 3.1.18 and 5.0 through 9.0), and SeaMonkey (before 2.7). The root cause is premature notification of AttributeChildRemoved that affects access to removed nsDOMAttribute child nodes, enabl...

CVE-2013-0768

Technical details for CVE-2013-0768 are not publicly available in the provided documents. Monitor for updates.

CVE-2013-0791

The connected Nessus advisories confirm CVE-2013-0791 affects Mozilla NSS and upstream products via CERT_DecodeCertPackage, allowing remote doS through out-of-bounds reads and memory corruption when processing crafted certificates. Affected: NSS libraries and apps (Firefox before 20.0, ESR 17.x b...

CVE-2017-5472

CVE-2017-5472 is a use-after-free in Mozilla's frameloader during CSS layout regeneration, leading to potential crash. Concrete details in connected docs show impact on Firefox versions <54, Firefox ESR <52.2, and Thunderbird

CVE-2017-7751

CVE-2017-7751 is a use-after-free vulnerability in Mozilla Firefox and Thunderbird associated with content viewer listeners, affecting Firefox versions before 54, ESR before 52.2, and Thunderbird before 52.2. The underlying issue is a memory safety flaw that can lead to a potentially exploitable ...

CVE-2018-18499

CVE-2018-18499 is a same-origin policy vulnerability in Mozilla Firefox and Thunderbird where a page using a meta http-equiv="refresh" redirects to another site and allows theft of cross-origin URL entries via performance.getEntries(). Affected: Firefox < 62, Firefox ESR < 60.2, Thunderbird

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-2012-3982

CVE-2012-3982 affects Mozilla Firefox before 16.0, Firefox ESR before 10.0.8, Thunderbird before 16.0, Thunderbird ESR before 10.0.8, and SeaMonkey before 2.13. The description notes multiple unspecified vulnerabilities in the browser engine that can cause memory corruption and application crashe...

CVE-2013-0755

CVE-2013-0755 refers to a use-after-free in the mozVibrate implementation of the Vibrate library in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.2, and SeaMonkey before 2.15. The vulnerability allows remote code execution...

CVE-2026-16390

A mitigation bypass exists in the Enterprise Policies component of Mozilla Firefox and Thunderbird . This vulnerability has been addressed in Firefox 153 , Firefox ESR 140.13 , Thunderbird 153 , and Thunderbird 140.13 . For users on Amazon Linux 2 , the fix is available in firefox-140.13.0-1.amzn...

CVE-2026-84129

A site isolation issue exists in the DOM: Navigation component of Mozilla Firefox and Mozilla Thunderbird . This vulnerability affects the DOM and can impact the security boundaries between different web contents. The issue has been resolved in the following versions: Firefox 155 , Firefox ESR 15...

CVE-2009-3983

CVE-2009-3983 affects Mozilla Firefox before 3.0.16 and Firefox 3.5.x before 3.5.6, and SeaMonkey before 2.0.1. The issue allows remote attackers to replay NTLM credentials from a browser user, enabling authenticated requests to arbitrary applications. The vulnerability is described as a credenti...