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-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-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-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-2018-12385

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-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-2018-5156

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-2018-5095

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-2018-5103

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-2025-1932

CVE-2025-1932 is an information- and memory-safety issue in the XSLT txNodeSorter comparator, causing potential out-of-bounds access. Affected products and versions are Firefox (pre-136), Firefox ESR (pre-128.8), Thunderbird (pre-136), and Thunderbird (pre-128.8); root cause is an inconsistent co...

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-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-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-2021-23993

CVE-2021-23993 affects Thunderbird: an attacker can cause encryption to fail by crafting an OpenPGP key with a subkey that has an invalid self-signature. When a user imports such a key, Thunderbird may attempt to use the invalid subkey, but the RNP library rejects it, leading to a DoS on sending ...

CVE-2022-45416

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

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-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-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-2021-38502

Thunderbird is affected by CVE-2021-38502 where STARTTLS requirements for SMTP were ignored, enabling a MITM to downgrade to an unencrypted connection or hijack an authenticated session and potentially obtain credentials if unprotected methods are configured. Multiple connected advisories confirm...

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-2018-5159

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-2020-15646

This CVE describes a credential theft flaw in Thunderbird: if an attacker can intercept Thunderbird’s initial automatic account setup via Microsoft Exchange autodiscovery and reply with crafted data, Thunderbird may send a username and password over HTTPS to the attacker-controlled server. Affect...

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-2022-45410

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-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-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-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-2018-5155

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-2022-46880

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-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-2022-29913

The CVE-2022-29913 vulnerability affects Thunderbird prior to version 91.9, caused by the parent process not properly checking if Speech Synthesis is enabled when handling commands from a child process. The issue is confirmed in multiple sources (e.g., CentOS/RH advisories and Astra Linux) and is...

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-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-2025-4919

CVE-2025-4919 describes an out-of-bounds read/write in JavaScript objects caused by confusing array index sizes, affecting Firefox including aliases (Firefox < 138.0.4, ESR < 128.10.1, ESR < 115.23.1) and Thunderbird (Thunderbird < 128.10.2; Thunderbird

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-2017-5373

Summary (CVE-2017-5373) Memory-safety bugs were reported in Firefox 50.1/ESR 45.6 and affect Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox

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-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-2023-28162

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

CVE-2019-11703

Summary (CVE-2019-11703) : A flaw in Thunderbird’s iCal handling causes a heap buffer overflow in libical’s parser_get_next_char, triggered by processing certain calendar-containing messages. The issue is documented to affect Thunderbird versions prior to 60.7.1, with public reports and advisorie...

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-2013-1670

CVE-2013-1670 affects Mozilla Firefox < 21.0, Firefox ESR < 17.0.6, Thunderbird

CVE-2017-5402

CVE-2017-5402 is a use-after-free in FontFace event handling that can crash Firefox/Thunderbird when a FontFace object is destroyed but events are fired. Affected products and versions include Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird

CVE-2018-12389

CVE-2018-12389 relates to memory safety bugs in Mozilla Firefox ESR 60.x affecting Firefox ESR < 60.3 and Thunderbird

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-2017-5443

The CVE-2017-5443 entry describes an out-of-bounds write during BinHex decoding that affects Mozilla products: Thunderbird before 52.1, Firefox ESR before 52.1, and Firefox before 53. The impact is memory corruption with potential crashes and possible arbitrary code execution. Upstream fixes are ...

CVE-2018-12361

CVE-2018-12361 is an integer overflow in the SwizzleData code during buffer-size calculation that can lead to a potentially exploitable crash when inputs aren’t sanitized. Affected products include Mozilla Thunderbird before 60 and Firefox family before 61 (Firefox ESR before 60.1). Public remedi...

CVE-2022-38472

The CVE-2022-38472 issue is a cross-origin spoofing vulnerability where XSLT error handling could allow attacker‑controlled content to be displayed as a different origin in the address bar, potentially tricking users into submitting data to a spoofed site. Affected products/versions (as stated in...

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