CVE-2018-5156

The CVE-2018-5156 entry describes a vulnerability in media capture: when the media source type is changed during capture, stream data can be cast to the wrong type, causing a crash. Affected products include Thunderbird

CVE-2018-5159

CVE-2018-5159 describes an integer overflow in the Skia library caused by 32-bit integer use in an array without bounds checks, leading to out-of-bounds writes. This can crash web content and is potentially exploitable. Affected products include Thunderbird < 52.8, Thunderbird ESR < 52.8, F...

CVE-2021-43540

CVE-2021-43540 affects Mozilla Firefox prior to 95. WebExtensions with the correct permissions could create and install ServiceWorkers for third-party sites that would not be uninstalled with the extension. This is described as an access restriction bypass vulnerability in Firefox < 95. The re...

CVE-2023-5732

CVE-2023-5732 affects Firefox (pre-117 and ESR pre-115.4) and Thunderbird (pre-115.4.1). An attacker could craft a link using bidirectional characters to spoof the displayed address in the address bar. Public details in connected advisories confirm this vulnerability and list affected products; r...

CVE-2017-7819

CVE-2017-7819 is a use-after-free in the design mode image resizing path that can crash the process if referenced objects have been freed. The vulnerability affects Thunderbird < 52.4 and, per the cited records, Firefox < 56 and Firefox ESR

CVE-2018-5102

CVE-2018-5102 is a use-after-free in HTML media element handling with media streams, affecting Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox

CVE-2018-5155

CVE-2018-5155 is a use-after-free in the layout code when processing SVG text-paths during animations, causing a potentially exploitable crash. Affected products include Thunderbird and Firefox: Thunderbird < 52.8 (including ESR), and Firefox

CVE-2022-46881

CVE-2022-46881 is a memory safety issue in WebGL where an optimization could cause memory corruption and a potentially exploitable crash. Affected products per provided sources are Firefox releases before 106, Firefox ESR before 102.6, and Thunderbird before 102.6. The root cause is a WebGL optim...

CVE-2022-46878

CVE-2022-46878 corresponds to memory-safety bugs reported in Thunderbird 102.5 with some cases involving memory corruption; affected products include Firefox < 108, Firefox ESR < 102.6, and Thunderbird

CVE-2016-9900

CVE-2016-9900 describes that data: URLs used by SVG images can bypass security restrictions, enabling cross-domain data leakage. Affected products include Mozilla Firefox (non-ESR) prior to 50.1, Firefox ESR prior to 45.6, and Thunderbird prior to 45.6. Root cause is the handling of external reso...

CVE-2017-5376

CVE-2017-5376 is a use-after-free in XSL processing of XSLT documents. Connected IBM advisories tie this CVE to Mozilla Firefox components shipped in IBM Storwize V7000 Unified and IBM SONAS; affected products include Thunderbird and Firefox binaries reported in the CVE. The IBM bulletins specify...

CVE-2017-5444

CVE-2017-5444 is a buffer overflow in parsing application/http-index-format data that enables an out-of-bounds read. Affected: Mozilla Thunderbird < 52.1, Firefox ESR < 45.9/52.1, and Firefox

CVE-2022-46877

CVE-2022-46877 describes a fullscreen notification bypass in Firefox prior to version 108, where the fullscreen notification could be delayed or suppressed, potentially allowing user confusion or spoofing. Affected product: Firefox (

CVE-2014-1510

The Web IDL implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 is vulnerable to remote code execution. An attacker can execute arbitrary JavaScript code with chrome privileges by utilizing an IDL fragment to trigger a wi...

CVE-2017-7801

CVE-2017-7801 is a use-after-free in marquee layout during window resize that frees the updated style object while still in use, potentially allowing a crash or exploit. Affected products include Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox

CVE-2018-5099

CVE-2018-5099 is a use-after-free vulnerability in the widget listener that can crash or potentially allow code execution when references to freed browser objects are used. Affected products/versions include Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox

CVE-2019-11751

CVE-2019-11751 affects Firefox on Windows, with logs sanitization issue allowing a log file to be written to arbitrary locations (e.g., Startup folder). Affected products are Firefox < 69 and Firefox ESR

CVE-2022-31743

CVE-2022-31743 describes a vulnerability in Mozilla Firefox where the HTML parser incorrectly handles HTML comment tags, creating an inconsistency with other browsers. Affected product: Firefox versions earlier than 101.0. The underlying issue is in how HTML comments are interpreted, enabling pot...

CVE-2022-38478

CVE-2022-38478 refers to memory-safety bugs reported by the Mozilla Fuzzing Team affecting Firefox 103, Firefox ESR 102.1, and Firefox ESR 91.12, with potential for memory corruption and, with sufficient effort, arbitrary code execution. Affected products include Thunderbird (versions older than ...

CVE-2023-28162

CVE-2023-28162 affects Firefox <111, Firefox ESR <102.9, and Thunderbird

CVE-2018-5098

CVE-2018-5098 is a use-after-free in Thunderbird/Firefox related to manipulating form input elements, focus, and selections via script content, causing potential crashes. Affected: Thunderbird < 52.6, Firefox ESR < 52.6, Firefox

CVE-2018-5148

CVE-2018-5148 is a use-after-free in Firefox/Firefox ESR’s compositor triggered during certain graphics operations due to using a raw pointer instead of a reference-counted one. Affected versions include Firefox ESR < 52.7.3 and Firefox

CVE-2020-6809

CVE-2020-6809 : A WebExtension with the all-urls permission could read local files when it made a fetch with mode 'same-origin', affecting Firefox versions older than 74. Root cause is an escalation of file access in WebExtensions via the all-urls permission. The IBM bulletin confirms the CVE-202...

CVE-2022-36319

CVE-2022-36319 involves a mouse position spoofing issue caused by combining CSS overflow and transform properties, affecting Firefox ESR and Thunderbird prior to certain fixed versions. Affected are Firefox ESR < 102.1, Firefox ESR < 91.12, Firefox < 103, Thunderbird < 102.1, and Thun...

CVE-2023-25728

The CVE-2023-25728 entry describes a CSP-Report-Only header issue where an attacker could leak a child iframe’s unredacted URI during a redirect, affecting Firefox < 110, Thunderbird < 102.8, and Firefox ESR

CVE-2023-25737

CVE-2023-25737 describes an invalid downcast from nsTextNode to SVGElement that could lead to undefined behavior. The vulnerability is observed in Mozilla Firefox (versions before 110), Thunderbird (versions before 102.8), and Firefox ESR (versions before 102.8). Connected advisories consistently...

CVE-2023-5729

CVE-2023-5729 targets Mozilla Firefox and is disclosed as affecting Firefox versions prior to 119. A malicious site could enter fullscreen mode while triggering a WebAuthn prompt, potentially obscuring the fullscreen notification and enabling spoofing. The vulnerability is documented across multi...

CVE-2025-5268

Memory safety bugs exist in Firefox 138 , Thunderbird 138 , Firefox ESR 128.10 , and Thunderbird 128.10 . These flaws involve a lack of data cleaning at the management level, which can result in memory corruption. With sufficient effort, these vulnerabilities could be exploited by a remote attack...

CVE-2017-5396

CVE-2017-5396 describes a use-after-free vulnerability in the Media Decoder when handling media files, where certain events fire after the media elements are freed. The initial document indicates affected products include Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox

CVE-2018-12396

CVE-2018-12396 is a Mozilla Firefox/Firefox ESR vulnerability where a WebExtension can run content scripts in disallowed contexts after certain navigation/events, enabling potential privilege escalation on sites where such scripts shouldn’t run. Multiple connected advisories confirm the issue and...

CVE-2021-38499

Affected software: Mozilla Firefox, specifically versions earlier than 93. Root cause: memory safety bugs leading to memory corruption. Impact: could allow remote code execution or a crash; exploitation would require attacker effort or specific conditions as described in the sources. Exploitation...

CVE-2021-43534

The CVE-2021-43534 entry concerns memory safety bugs in Mozilla Firefox 93 and Firefox ESR 91.2, with potential for memory corruption and possible arbitrary code execution. Affected products are Firefox < 94, Thunderbird < 91.3, and Firefox ESR

CVE-2021-43535

CVE-2021-43535 is a memory-safety vulnerability in Mozilla browsers where an HTTP2 session object could be released on a different thread, causing use-after-free, memory corruption, and a potentially exploitable crash. The consolidated information across sources indicates the issue affects Firefo...

CVE-2022-36314

CVE-2022-36314 affects Firefox on Windows (Windows shortcut handling). A local attacker could induce a user to open a local .lnk that supplies a remote path, causing the OS to make unexpected network requests. Affected: Firefox for Windows; Firefox ESR < 102.1; Firefox < 103; Thunderbird

CVE-2023-5726

The CVE-2023-5726 issue is a macOS-only browser UI vulnerability where an obscured fullscreen notification could be exposed via the file-open dialog, potentially enabling spoofing or user confusion. Affected products/versions are Firefox older than 119, Firefox ESR older than 115.4, and Thunderbi...

CVE-2023-6204

CVE-2023-6204 describes an out-of-bounds read that can leak memory data into images created on the canvas element. The issue affects Firefox versions older than 120, Firefox ESR older than 115.5.0, and Thunderbird older than 115.5.0. The available connected advisories corroborate the vulnerabilit...

CVE-2020-6813

CVE-2020-6813 affects Firefox prior to 74, where protecting CSS blocks with the Content Security Policy nonce could be bypassed via an @import in a CSS block, allowing style injection and bypass of CSP intent. The IBM bulletin for IBM Cloud App Management documents this exact CVE and notes the vu...

CVE-2022-34471

CVE-2022-34471 affects Mozilla Firefox prior to version 102, where the updater failed to verify that the downloaded addon update version matched the manifest, creating a risk that a tampered server manifest could cause a downgrade to an older addon. The issue is documented across multiple connect...

CVE-2023-25732

CVE-2023-25732 involves an out-of-bounds memory write caused by incorrect calculation of the input size when encoding data from inputStream in xpcom. The vulnerability affects Firefox before 110, Thunderbird before 102.8, and Firefox ESR before 102.8. Connected advisories corroborate the issue an...

CVE-2023-6208

CVE-2023-6208 is a Firefox/Thunderbird issue limited to X11: text selected via the Selection API is copied into the primary selection. Affected: Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird

CVE-2026-8090

A use-after-free vulnerability exists in the DOM: Networking component of the Mozilla Firefox web browser and the Thunderbird email client. This flaw allows an attacker to compromise the confidentiality, integrity, and accessibility of protected information. The issue has been addressed in severa...

CVE-2007-3670

CVE-2007-3670 describes an argument-injection vulnerability where Internet Explorer could pass malicious parameters to registered Firefox handlers (FirefoxURL/FirefoxHTML) on Windows, enabling cross-browser scripting and potential remote code execution by exploiting the unescaped URL argument whe...

CVE-2020-6810

Technical details beyond the high-level description (Firefox

CVE-2021-23970

CVE-2021-23970 affects Mozilla Firefox prior to version 86. The issue arises from context-specific code included in a shared jump table, triggering assertions in multithreaded WebAssembly code. Affected product: Firefox (older than 86). Root cause: shared jump-table context-specific code leading ...

CVE-2023-5722

CVE-2023-5722 describes an information-disclosure vulnerability in Mozilla Firefox prior to 119, where an attacker using iterative requests can learn the size of an opaque response and contents of a server-supplied Vary header. Vendor advisories (Firefox fixes in 119 and ESR 115.4.1/115.4.x as ci...

CVE-2025-5263

The Mozilla Firefox browser and Thunderbird email client are affected by CVE-2025-5263 , where error handling for script execution was incorrectly isolated from web content. This flaw could allow an attacker to perform cross-origin leak attacks to gain unauthorized access to protected information...

CVE-2018-5154

CVE-2018-5154 is a use-after-free in the enumeration of attributes during SVG animations with clip paths, causing a potentially exploitable crash. Affected: Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, Firefox ESR

CVE-2022-31745

CVE-2022-31745 affects Mozilla Firefox older than 101.0. The issue arises when array shift operations are not used, potentially confusing the Garbage Collector about valid objects, leading to memory corruption and a potentially exploitable crash. The CVSS v3.1 base score is 4.3 (Medium). Mitigati...

CVE-2022-38477

CVE-2022-38477 concerns memory safety bugs reported by Mozilla’s Fuzzing Team in Firefox 103 and Firefox ESR 102.1. The entry notes evidence of memory corruption and a presumption that, with sufficient effort, some bugs could be exploited to execute arbitrary code. Affected products explicitly li...

CVE-2023-29535

CVE-2023-29535: The vulnerability arises from a garbage collector compaction issue in Firefox/related products where a weak map could be accessed before proper tracing, leading to memory corruption and a potentially exploitable crash. Affected software per documents includes Firefox (and derivati...