Mozilla Firefox Esr vulnerabilities

CVE-2018-5157 [HIGH] CWE-200 CVE-2018-5157: Same-origin protections for the PDF viewer can be bypassed, allowing a malicious site to intercept m Same-origin protections for the PDF viewer can be bypassed, allowing a malicious site to intercept messages meant for the viewer. This could allow the site to retrieve PDF files restricted to viewing by an authenticated user on a third-party website. This vulnerability affects Firefox ESR < 52.8 and Firefox < 60.

CVE-2021-38498 [HIGH] CWE-416 CVE-2021-38498: During process shutdown, a document could have caused a use-after-free of a languages service object During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.

CVE-2023-5728 [HIGH] CWE-416 CVE-2023-5728: During garbage collection extra operations were performed on a object that should not be. This could During garbage collection extra operations were performed on a object that should not be. This could have led to a potentially exploitable crash. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

CVE-2026-6776 [HIGH] Mozilla Foundation Security Advisory 2026-32: CVE-2026-6776 Mozilla Foundation Security Advisory 2026-32 CVE: CVE-2026-6776 Product: Firefox ESR Impact: high Fixed in: Firefox ESR 140.10

CVE-2022-22737 [HIGH] CWE-362 CVE-2022-22737: Constructing audio sinks could have lead to a race condition when playing audio files and closing wi Constructing audio sinks could have lead to a race condition when playing audio files and closing windows. This could have lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

CVE-2024-7652 [HIGH] CWE-476 CVE-2024-7652: An error in the ECMA-262 specification relating to Async Generators could have resulted in a type co An error in the ECMA-262 specification relating to Async Generators could have resulted in a type confusion, potentially leading to memory corruption and an exploitable crash. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.

CVE-2024-9399 [HIGH] CWE-404 CVE-2024-9399: A website configured to initiate a specially crafted WebTransport session could crash the Firefox pr A website configured to initiate a specially crafted WebTransport session could crash the Firefox process leading to a denial of service condition. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.

CVE-2019-9812 [CRITICAL] CVE-2019-9812: Given a compromised sandboxed content process due to a separate vulnerability, it is possible to esc Given a compromised sandboxed content process due to a separate vulnerability, it is possible to escape that sandbox by loading accounts.firefox.com in that process and forcing a log-in to a malicious Firefox Sync account. Preference settings that disable the sandbox are then synchronized to the local machine and the compromised browser would restart withou

CVE-2022-22753 [HIGH] CWE-367 CVE-2022-22753: A Time-of-Check Time-of-Use bug existed in the Maintenance (Updater) Service that could be abused to A Time-of-Check Time-of-Use bug existed in the Maintenance (Updater) Service that could be abused to grant Users write access to an arbitrary directory. This could have been used to escalate to SYSTEM access.*This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 97, Thunderbird < 91.6,

CVE-2021-29951 [MEDIUM] CWE-269 CVE-2021-29951: The Mozilla Maintenance Service granted SERVICE_START access to BUILTIN|Users which, in a domain net The Mozilla Maintenance Service granted SERVICE_START access to BUILTIN|Users which, in a domain network, grants normal remote users access to start or stop the service. This could be used to prevent the browser update service from operating (if an attacker spammed the 'Stop' command); but also exposed attack surface in the maintenance service. *Not

CVE-2019-11712 [HIGH] CWE-352 CVE-2019-11712: POST requests made by NPAPI plugins, such as Flash, that receive a status 308 redirect response can POST requests made by NPAPI plugins, such as Flash, that receive a status 308 redirect response can bypass CORS requirements. This can allow an attacker to perform Cross-Site Request Forgery (CSRF) attacks. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

CVE-2015-2728 [HIGH] CVE-2015-2728: The IndexedDatabaseManager class in the IndexedDB implementation in Mozilla Firefox before 39.0 and The IndexedDatabaseManager class in the IndexedDB implementation in Mozilla Firefox before 39.0 and Firefox ESR 31.x before 31.8 and 38.x before 38.1 misinterprets an unspecified IDBDatabase field as a pointer, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via unspecified vectors, r

CVE-2017-7807 [HIGH] CWE-20 CVE-2017-7807: A mechanism that uses AppCache to hijack a URL in a domain using fallback by serving the files from A mechanism that uses AppCache to hijack a URL in a domain using fallback by serving the files from a sub-path on the domain. This has been addressed by requiring fallback files be inside the manifest directory. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

CVE-2016-9904 [HIGH] CWE-200 CVE-2016-9904: An attacker could use a JavaScript Map/Set timing attack to determine whether an atom is used by ano An attacker could use a JavaScript Map/Set timing attack to determine whether an atom is used by another compartment/zone in specific contexts. This could be used to leak information, such as usernames embedded in JavaScript code, across websites. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.

CVE-2017-7754 [HIGH] CWE-125 CVE-2017-7754: An out-of-bounds read in WebGL with a maliciously crafted "ImageInfo" object during WebGL operations An out-of-bounds read in WebGL with a maliciously crafted "ImageInfo" object during WebGL operations. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

CVE-2017-7803 [HIGH] CWE-269 CVE-2017-7803: When a page's content security policy (CSP) header contains a "sandbox" directive, other directives When a page's content security policy (CSP) header contains a "sandbox" directive, other directives are ignored. This results in the incorrect enforcement of CSP. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

CVE-2015-0817 [MEDIUM] CWE-17 CVE-2015-0817: The asm.js implementation in Mozilla Firefox before 36.0.3, Firefox ESR 31.x before 31.5.2, and SeaM The asm.js implementation in Mozilla Firefox before 36.0.3, Firefox ESR 31.x before 31.5.2, and SeaMonkey before 2.33.1 does not properly determine the cases in which bounds checking may be safely skipped during JIT compilation and heap access, which allows remote attackers to read or write to unintended memory locations, and consequently execute arbit

CVE-2017-7765 [HIGH] CWE-20 CVE-2017-7765: The "Mark of the Web" was not correctly saved on Windows when files with very long names were downlo The "Mark of the Web" was not correctly saved on Windows when files with very long names were downloaded from the Internet. Without the Mark of the Web data, the security warning that Windows displays before running executables downloaded from the Internet is not shown. Note: This attack only affects Windows operating systems. Other operating systems are

CVE-2016-9902 [HIGH] CWE-346 CVE-2016-9902: The Pocket toolbar button, once activated, listens for events fired from it's own pages but does not The Pocket toolbar button, once activated, listens for events fired from it's own pages but does not verify the origin of incoming events. This allows content from other origins to fire events and inject content and commands into the Pocket context. Note: this issue does not affect users with e10s enabled. This vulnerability affects Firefox ESR < 45.6 a

CVE-2017-7766 [HIGH] CVE-2017-7766: An attack using manipulation of "updater.ini" contents, used by the Mozilla Windows Updater, and pri An attack using manipulation of "updater.ini" contents, used by the Mozilla Windows Updater, and privilege escalation through the Mozilla Maintenance Service to allow for arbitrary file execution and deletion by the Maintenance Service, which has privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems