CVE-2018-12378

CVE-2018-12378 is a use-after-free in Thunderbird/Firefox related to deleting an IndexedDB index while it is still in use by JavaScript, causing a potentially exploitable crash. Affected: Thunderbird

CVE-2022-46874

CVE-2022-46874 describes a filename truncation issue where a long filename could lose its valid extension, leaving a malicious extension that could confuse users or lead to execution of malicious code. Public reports indicate affected products include Firefox versions before 108 and Thunderbird v...

CVE-2025-4919

Mozilla Firefox and Thunderbird are affected by an out-of-bounds read or write vulnerability in a JavaScript object . The root cause is triggered by confusing array index sizes during operations. This security flaw could potentially lead to memory corruption. Remediation is available in Firefox 1...

CVE-2017-5380

CVE-2017-5380 is a use-after-free vulnerability related to SVG content processing. Connected IBM advisories confirm this CVE ID is present and tie it to vulnerabilities in Mozilla Firefox shipped with IBM Storwize V7000 Unified and IBM SONAS. Affected IBM products and versions are IBM Storwize V7...

CVE-2017-5462

The CVE-2017-5462 issue is a DRBG generation flaw in the NSS library where the internal state V does not correctly carry bits over. This vulnerability affects Mozilla products including Thunderbird (<52.1), Firefox ESR (<52.1), Firefox (

CVE-2018-12383

CVE-2018-12383 describes an information disclosure in Thunderbird (and Firefox components) where, if a user saved passwords before migrating to the new password format (pre-Firefox 58) and later set a master password, an unencrypted copy of those passwords could remain accessible because the lega...

CVE-2023-32207

CVE-2023-32207 describes a missing delay in popup notifications that could let an attacker trick a user into granting permissions. Affected software includes Firefox < 113, Firefox ESR < 102.11, and Thunderbird

CVE-2013-0801

CVE-2013-0801 is a memory-corruption vulnerability in the Mozilla Firefox/Thunderbird browser engine. Affected: Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6. Impact per docs: remote Denial of Service and possible arbitrary ...

CVE-2018-5117

CVE-2018-5117 describes a URL spoofing issue where, when right-to-left text is used in the address bar with left-to-right alignment, the displayed URL can be scrolled to mislead users about the actual site. The vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox

CVE-2018-5125

CVE-2018-5125 is a memory-safety issue reported in Thunderbird < 52.7, Firefox ESR < 52.7, and Firefox

CVE-2019-11705

CVE-2019-11705 is a stack buffer overflow in Thunderbird’s libical-based icalrecur_add_bydayrules (affecting Thunderbird

CVE-2019-17009

CVE-2019-17009 affects Mozilla Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox

CVE-2017-5378

CVE-2017-5378 involves hashed codes of JavaScript objects enabling pointer leaks and potential data leakage. The vulnerability affects Mozilla products as noted in connected sources: Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox

CVE-2018-12360

CVE-2018-12360 is a use-after-free vulnerability in Thunderbird (and Firefox components) triggered by deleting an input element during a mutation event handler invoked by focusing that element. Affected versions include Thunderbird before 60 and Thunderbird before 52.9.1; Firefox ESR before 60.1/...

CVE-2018-12385

CVE-2018-12385 describes a potentially exploitable crash in TransportSecurityInfo used for SSL, triggered by data stored in the local cache within the user profile. Affected products include Thunderbird < 60.2.1, Firefox ESR < 60.2.1, and Firefox

CVE-2016-9893

CVE-2016-9893 relates to memory safety bugs reported in Thunderbird 45.5, with evidence of memory corruption. Affected products include Firefox <50.1, Firefox ESR <45.6, and Thunderbird

CVE-2022-46880

CVE-2022-46880 describes a missing check related to tex units that could cause a use-after-free and an exploitable crash. Affected products include Firefox (ESR < 102.6, and Firefox < 105) and Thunderbird

CVE-2010-3176

CVE-2010-3176 affects Mozilla products including Firefox (3.5.x before 3.5.14 and 3.6.x before 3.6.11), Thunderbird (before 3.0.9 and before 3.1.5), and SeaMonkey (before 2.0.9). The issue is described as multiple unspecified vulnerabilities in the browser engine that could allow remote attackers...

CVE-2016-9899

CVE-2016-9899 describes a use-after-free in Firefox/Thunderbird caused by errors in node adoption handling during DOM event manipulation and audio element removal. Affected: Firefox < 50.1, Firefox ESR < 45.6, Thunderbird

CVE-2018-5103

CVE-2018-5103 is a use-after-free vulnerability that can occur during mouse event handling due to multiprocess-related issues, leading to potentially exploitable crashes. Affected products include Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox

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-2018-12393

CVE-2018-12393 concerns 32‑bit Firefox builds (not 64‑bit) where an integer overflow during scripts-to-UTF-16 conversion can allocate a too-small buffer, causing an out-of-bounds write. Affected products include Firefox < 63, Firefox ESR < 60.3, and Thunderbird

CVE-2018-5095

CVE-2018-5095 is an integer overflow in the Skia library during edge-builder memory allocation on systems with 8 GB+ RAM, causing uninitialized memory usage and a potentially exploitable crash. Public disclosures show affected products include Thunderbird < 52.6, Firefox ESR < 52.6, and Fir...

CVE-2018-5097

CVE-2018-5097 is a use-after-free vulnerability in XSL transformations where the source document is manipulated by script content during transformation. Affected products include Mozilla Thunderbird and Firefox variants prior to version 52.6/58, with upstream fixes targeting Thunderbird 52.6.0 (a...

CVE-2025-1937

Memory safety bugs in Firefox and Thunderbird (including ESR versions) can lead to memory corruption . If exploited, these vulnerabilities could allow an attacker to run arbitrary code . This issue affects Firefox versions prior to 136 , Firefox ESR versions prior to 115.21 and 128.8 , Thunderbir...

CVE-2011-3079

CVE-2011-3079 concerns an IPC message validation weakness in Chrome’s IPC implementation (also used by Firefox prior to 38.0) that could allow sandbox escape due to insufficient authentication/validation in the listener process. Connected advisories indicate an earlier fix added authentication be...

CVE-2012-0469

CVE-2012-0469 is a use-after-free in Mozilla Firefox/Thunderbird/SeaMonkey components involving the IndexedDB IDBKeyRange cycleCollection Trace path. Affects Firefox 4.x–11.0, 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. Root cause: u...

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-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-2022-45416

CVE-2022-45416 affects Firefox ESR < 102.5, Thunderbird < 102.5, 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-2022-40959

The CVE-2022-40959 entry corresponds to a Mozilla vulnerability where during iframe navigation, FeaturePolicy was not fully initialized, allowing a bypass that leaked device permissions to untrusted subdocuments. Affected products include Firefox ESR before 102.3, Thunderbird before 102.3, and Fi...

CVE-2022-45410

CVE-2022-45410 : When a ServiceWorker intercepted a request with a FetchEvent, the origin of the request could be lost after the ServiceWorker took ownership, negating SameSite cookie protections. Affected: Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox

CVE-2016-1960

CVE-2016-1960 is a vulnerability in Mozilla Firefox’s HTML5 parser (nsHtml5TreeBuilder) involving an integer underflow that enables a use-after-free scenario when parsing end tags in a foreign fragment context (SVG). Affects Firefox before 45.0 and Firefox ESR 38.x before 38.7; exploitation can l...

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-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-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-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-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-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-2025-3028

The Mozilla Firefox browser and Thunderbird email client are vulnerable to a use-after-free memory corruption issue. The vulnerability exists in the XSLTProcessor component, where JavaScript code running during document transformation can trigger the flaw. A remote attacker could potentially exec...

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-2017-7819

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-2021-29950

Summary: CVE-2021-29950 affects Mozilla Thunderbird prior to 78.8.1. The issue occurs when OpenPGP keys are unprotected in memory before decryption, signing, or import tasks; if the task fails, the secret key may remain in memory in an unprotected state. Impact (as described): Potential exposure ...

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-2021-38510

CVE-2021-38510 describes a Mac‑OS specific flaw where the executable file warning was not shown when downloading .inetloc files, which can cause commands to run on a user’s computer. Affected products and versions from the provided documents: Mozilla Firefox (Mac) < 94, Thunderbird < 91.3, ...

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-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-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