Mozilla Firefox Esr vulnerabilities

CVE-2012-0462 [HIGH] CVE-2012-0462: Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox 4.x through 10.0, Fire Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vec

CVE-2026-12302 [MEDIUM] Mozilla Foundation Security Advisory 2026-58: CVE-2026-12302 Mozilla Foundation Security Advisory 2026-58 CVE: CVE-2026-12302 Product: Firefox ESR Impact: high Fixed in: Firefox ESR 140.12

CVE-2015-2734 [CRITICAL] CWE-17 CVE-2015-2734: The CairoTextureClientD3D9::BorrowDrawTarget function in the Direct3D 9 implementation in Mozilla Fi The CairoTextureClientD3D9::BorrowDrawTarget function in the Direct3D 9 implementation in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and Thunderbird before 38.1 reads data from uninitialized memory locations, which has unspecified impact and attack vectors.

CVE-2015-2738 [CRITICAL] CWE-17 CVE-2015-2738: The YCbCrImageDataDeserializer::ToDataSourceSurface function in the YCbCr implementation in Mozilla The YCbCrImageDataDeserializer::ToDataSourceSurface function in the YCbCr implementation in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and Thunderbird before 38.1 reads data from uninitialized memory locations, which has unspecified impact and attack vectors.

CVE-2017-5449 [HIGH] CWE-20 CVE-2017-5449: A possibly exploitable crash triggered during layout and manipulation of bidirectional unicode text A possibly exploitable crash triggered during layout and manipulation of bidirectional unicode text in concert with CSS animations. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.

CVE-2017-5467 [HIGH] CWE-119 CVE-2017-5467: A potential memory corruption and crash when using Skia content when drawing content outside of the A potential memory corruption and crash when using Skia content when drawing content outside of the bounds of a clipping region. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.

CVE-2020-15657 [HIGH] CWE-427 CVE-2020-15657: Firefox could be made to load attacker-supplied DLL files from the installation directory. This requ Firefox could be made to load attacker-supplied DLL files from the installation directory. This required an attacker that is already capable of placing files in the installation directory. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, an

CVE-2023-6209 [MEDIUM] CWE-22 CVE-2023-6209: Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/../" part Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/../" part in the path could be used to override the specified host. This could contribute to security problems in web sites. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVE-2024-7531 [MEDIUM] CWE-367 CVE-2024-7531: Calling `PK11_Encrypt()` in NSS using CKM_CHACHA20 and the same buffer for input and output can resu Calling `PK11_Encrypt()` in NSS using CKM_CHACHA20 and the same buffer for input and output can result in plaintext on an Intel Sandy Bridge processor. In Firefox this only affects the QUIC header protection feature when the connection is using the ChaCha20-Poly1305 cipher suite. The most likely outcome is connection failure, but if the connection per

CVE-2026-12309 [MEDIUM] Mozilla Foundation Security Advisory 2026-58: CVE-2026-12309 Mozilla Foundation Security Advisory 2026-58 CVE: CVE-2026-12309 Product: Firefox ESR Impact: high Fixed in: Firefox ESR 140.12

CVE-2026-6764 [MEDIUM] Mozilla Foundation Security Advisory 2026-32: CVE-2026-6764 Mozilla Foundation Security Advisory 2026-32 CVE: CVE-2026-6764 Product: Firefox ESR Impact: high Fixed in: Firefox ESR 140.10

CVE-2015-2739 [CRITICAL] CWE-119 CVE-2015-2739: The ArrayBufferBuilder::append function in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 The ArrayBufferBuilder::append function in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and Thunderbird before 38.1 accesses unintended memory locations, which has unspecified impact and attack vectors.

CVE-2015-2737 [CRITICAL] CWE-17 CVE-2015-2737: The rx::d3d11::SetBufferData function in the Direct3D 11 implementation in Mozilla Firefox before 39 The rx::d3d11::SetBufferData function in the Direct3D 11 implementation in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and Thunderbird before 38.1 reads data from uninitialized memory locations, which has unspecified impact and attack vectors.

CVE-2015-0831 [MEDIUM] CVE-2015-0831: Use-after-free vulnerability in the mozilla::dom::IndexedDB::IDBObjectStore::CreateIndex function in Use-after-free vulnerability in the mozilla::dom::IndexedDB::IDBObjectStore::CreateIndex function in Mozilla Firefox before 36.0, Firefox ESR 31.x before 31.5, and Thunderbird before 31.5 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via crafted content that is improperly handled during IndexedDB index

CVE-2017-7814 [HIGH] CWE-20 CVE-2017-7814: File downloads encoded with "blob:" and "data:" URL elements bypassed normal file download checks th File downloads encoded with "blob:" and "data:" URL elements bypassed normal file download checks though the Phishing and Malware Protection feature and its block lists of suspicious sites and files. This would allow malicious sites to lure users into downloading executables that would otherwise be detected as suspicious. This vulnerability affects Firef

CVE-2015-2713 [MEDIUM] CVE-2015-2713: Use-after-free vulnerability in the SetBreaks function in Mozilla Firefox before 38.0, Firefox ESR 3 Use-after-free vulnerability in the SetBreaks function in Mozilla Firefox before 38.0, Firefox ESR 31.x before 31.7, and Thunderbird before 31.7 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via a document containing crafted text in conjunction with a Cascading Style Sheets (CSS) token sequence contain

CVE-2018-12365 [MEDIUM] CWE-200 CVE-2018-12365: A compromised IPC child process can escape the content sandbox and list the names of arbitrary files A compromised IPC child process can escape the content sandbox and list the names of arbitrary files on the file system without user consent or interaction. This could result in exposure of private local files. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

CVE-2014-8639 [MEDIUM] CVE-2014-8639: Mozilla Firefox before 35.0, Firefox ESR 31.x before 31.4, Thunderbird before 31.4, and SeaMonkey be Mozilla Firefox before 35.0, Firefox ESR 31.x before 31.4, Thunderbird before 31.4, and SeaMonkey before 2.32 do not properly interpret Set-Cookie headers within responses that have a 407 (aka Proxy Authentication Required) status code, which allows remote HTTP proxy servers to conduct session fixation attacks by providing a cookie name that corresponds to th

CVE-2020-26965 [MEDIUM] CWE-212 CVE-2020-26965: Some websites have a feature "Show Password" where clicking a button will change a password field in Some websites have a feature "Show Password" where clicking a button will change a password field into a textbook field, revealing the typed password. If, when using a software keyboard that remembers user input, a user typed their password and used that feature, the type of the password field was changed, resulting in a keyboard layout change and t

CVE-2012-0454 [HIGH] CWE-399 CVE-2012-0454: Use-after-free vulnerability in Mozilla Firefox 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Th Use-after-free vulnerability in Mozilla Firefox 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 on 32-bit Windows 7 platforms allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors involving use of