Mozilla Thunderbird vulnerabilities

CVE-2014-1530 [MEDIUM] CWE-79 CVE-2014-1530: The docshell implementation in Mozilla Firefox before 29.0, Firefox ESR 24.x before 24.5, Thunderbir The docshell implementation in Mozilla Firefox before 29.0, Firefox ESR 24.x before 24.5, Thunderbird before 24.5, and SeaMonkey before 2.26 allows remote attackers to trigger the loading of a URL with a spoofed baseURI property, and conduct cross-site scripting (XSS) attacks, via a crafted web site that performs history navigation.

CVE-2006-0297 [MEDIUM] CVE-2006-0297: Multiple integer overflows in Mozilla Firefox 1.5, Thunderbird 1.5 if Javascript is enabled in mail, Multiple integer overflows in Mozilla Firefox 1.5, Thunderbird 1.5 if Javascript is enabled in mail, and SeaMonkey before 1.0 might allow remote attackers to execute arbitrary code via the (1) EscapeAttributeValue in jsxml.c for E4X, (2) nsSVGCairoSurface::Init in SVG, and (3) nsCanvasRenderingContext2D.cpp in Canvas.

CVE-2019-11763 [MEDIUM] CWE-79 CVE-2019-11763: Failure to correctly handle null bytes when processing HTML entities resulted in Firefox incorrectly Failure to correctly handle null bytes when processing HTML entities resulted in Firefox incorrectly parsing these entities. This could have led to HTML comment text being treated as HTML which could have led to XSS in a web application under certain conditions. It could have also led to HTML entities being masked from filters - enabling the use of e

CVE-2009-0652 [MEDIUM] CVE-2009-0652: The Internationalized Domain Names (IDN) blacklist in Mozilla Firefox 3.0.6 and other versions befor The Internationalized Domain Names (IDN) blacklist in Mozilla Firefox 3.0.6 and other versions before 3.0.9; Thunderbird before 2.0.0.21; and SeaMonkey before 1.1.15 does not include box-drawing characters, which allows remote attackers to spoof URLs and conduct phishing attacks, as demonstrated by homoglyphs of the / (slash) and ? (question mark) characters

CVE-2012-0441 [MEDIUM] CWE-119 CVE-2012-0441: The ASN.1 decoder in the QuickDER decoder in Mozilla Network Security Services (NSS) before 3.13.4, The ASN.1 decoder in the QuickDER decoder in Mozilla Network Security Services (NSS) before 3.13.4, as used in Firefox 4.x through 12.0, Firefox ESR 10.x before 10.0.5, Thunderbird 5.0 through 12.0, Thunderbird ESR 10.x before 10.0.5, and SeaMonkey before 2.10, allows remote attackers to cause a denial of service (application crash) via a zero-length i

CVE-2014-1565 [MEDIUM] CWE-119 CVE-2014-1565: The mozilla::dom::AudioEventTimeline function in the Web Audio API implementation in Mozilla Firefox The mozilla::dom::AudioEventTimeline function in the Web Audio API implementation in Mozilla Firefox before 32.0, Firefox ESR 31.x before 31.1, and Thunderbird 31.x before 31.1 does not properly create audio timelines, which allows remote attackers to obtain sensitive information from process memory or cause a denial of service (out-of-bounds read) vi

CVE-2015-2729 [MEDIUM] CWE-119 CVE-2015-2729: The AudioParamTimeline::AudioNodeInputValue function in the Web Audio implementation in Mozilla Fire The AudioParamTimeline::AudioNodeInputValue function in the Web Audio implementation in Mozilla Firefox before 39.0 and Firefox ESR 38.x before 38.1 does not properly calculate an oscillator rendering range, which allows remote attackers to obtain sensitive information from process memory or cause a denial of service (out-of-bounds read) via unspecifi

CVE-2012-1959 [MEDIUM] CWE-264 CVE-2012-1959: Mozilla Firefox 4.x through 13.0, Firefox ESR 10.x before 10.0.6, Thunderbird 5.0 through 13.0, Thun Mozilla Firefox 4.x through 13.0, Firefox ESR 10.x before 10.0.6, Thunderbird 5.0 through 13.0, Thunderbird ESR 10.x before 10.0.6, and SeaMonkey before 2.11 do not consider the presence of same-compartment security wrappers (SCSW) during the cross-compartment wrapping of objects, which allows remote attackers to bypass intended XBL access restriction

CVE-2017-5418 [MEDIUM] CWE-125 CVE-2017-5418: An out of bounds read error occurs when parsing some HTTP digest authorization responses, resulting An out of bounds read error occurs when parsing some HTTP digest authorization responses, resulting in information leakage through the reading of random memory containing matches to specifically set patterns. This vulnerability affects Firefox < 52 and Thunderbird < 52.

CVE-2023-4046 [MEDIUM] CVE-2023-4046: In some circumstances, a stale value could have been used for a global variable in WASM JIT analysis In some circumstances, a stale value could have been used for a global variable in WASM JIT analysis. This resulted in incorrect compilation and a potentially exploitable crash in the content process. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

CVE-2011-2362 [MEDIUM] CWE-264 CVE-2011-2362: Mozilla Firefox before 3.6.18, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14 do not distin Mozilla Firefox before 3.6.18, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14 do not distinguish between cookies for two domain names that differ only in a trailing dot, which allows remote web servers to bypass the Same Origin Policy via Set-Cookie headers.

CVE-2018-12383 [MEDIUM] CWE-522 CVE-2018-12383: If a user saved passwords before Firefox 58 and then later set a master password, an unencrypted cop If a user saved passwords before Firefox 58 and then later set a master password, an unencrypted copy of these passwords is still accessible. This is because the older stored password file was not deleted when the data was copied to a new format starting in Firefox 58. The new master password is added only on the new file. This could allow the expos

CVE-2023-25730 [MEDIUM] CWE-1021 CVE-2023-25730: A background script invoking <code>requestFullscreen</code> and then blocking the main thread could A background script invoking requestFullscreen and then blocking the main thread could force the browser into fullscreen mode indefinitely, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.

CVE-2022-36318 [MEDIUM] CWE-362 CVE-2022-36318: When visiting directory listings for `chrome://` URLs as source text, some parameters were reflected When visiting directory listings for `chrome://` URLs as source text, some parameters were reflected. This vulnerability affects Firefox ESR < 102.1, Firefox ESR < 91.12, Firefox < 103, Thunderbird < 102.1, and Thunderbird < 91.12.

CVE-2026-12323 [MEDIUM] CWE-1021 CVE-2026-12323: Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152 and Th Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

CVE-2024-10468 [MEDIUM] CWE-362 CVE-2024-10468: Potential race conditions in IndexedDB could have caused memory corruption, leading to a potentially Potential race conditions in IndexedDB could have caused memory corruption, leading to a potentially exploitable crash. This vulnerability affects Firefox < 132 and Thunderbird < 132.

CVE-2025-4090 [MEDIUM] CWE-532 CVE-2025-4090: A vulnerability existed in Thunderbird for Android where potentially sensitive library locations wer A vulnerability existed in Thunderbird for Android where potentially sensitive library locations were logged via Logcat. This vulnerability was fixed in Firefox 138 and Thunderbird 138.

CVE-2025-26695 [MEDIUM] CVE-2025-26695: When requesting an OpenPGP key from a WKD server, an incorrect padding size was used and a network o When requesting an OpenPGP key from a WKD server, an incorrect padding size was used and a network observer could have learned the length of the requested email address. This vulnerability was fixed in Thunderbird 136 and Thunderbird 128.8.

CVE-2012-4184 [MEDIUM] CWE-79 CVE-2012-4184: The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x befo The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 does not prevent access to properties of a prototype for a standard class, which allows remote attackers to execute arbitrary JavaScript code with chrome pr

CVE-2021-38509 [MEDIUM] CWE-1021 CVE-2021-38509: Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker's choosing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.