Mozilla Firefox vulnerabilities

CVE-2015-7180 [HIGH] CWE-119 CVE-2015-7180: The ReadbackResultWriterD3D11::Run function in Mozilla Firefox before 41.0 and Firefox ESR 38.x befo The ReadbackResultWriterD3D11::Run function in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 misinterprets the return value of a function call, which might allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via unknown vectors.

CVE-2015-4521 [HIGH] CWE-119 CVE-2015-4521: The ConvertDialogOptions function in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 mi The ConvertDialogOptions function in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 might allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via unknown vectors.

CVE-2024-2605 [MEDIUM] CVE-2024-2605: An attacker could have leveraged the Windows Error Reporter to run arbitrary code on the system esca An attacker could have leveraged the Windows Error Reporter to run arbitrary code on the system escaping the sandbox. *Note:* This issue only affected Windows operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.

CVE-2025-4082 [MEDIUM] CWE-125 CVE-2025-4082: Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when ch Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained with other vulnerabilities, could be used to escalate privileges. *This bug only affects Thunderbird for macOS. Other versions of Thunderbird are unaffected.*. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Th

CVE-2014-1587 [MEDIUM] CWE-20 CVE-2014-1587: Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 34.0, Firefox E Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 34.0, Firefox ESR 31.x before 31.3, Thunderbird before 31.3, and SeaMonkey before 2.31 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

CVE-2008-1236 [MEDIUM] CWE-399 CVE-2008-1236: Multiple unspecified vulnerabilities in Mozilla Firefox before 2.0.0.13, Thunderbird before 2.0.0.13 Multiple unspecified vulnerabilities in Mozilla Firefox before 2.0.0.13, Thunderbird before 2.0.0.13, and SeaMonkey before 1.1.9 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors related to the layout engine.

CVE-2012-4203 [MEDIUM] CWE-264 CVE-2012-4203: The New Tab page in Mozilla Firefox before 17.0 uses a privileged context for execution of JavaScrip The New Tab page in Mozilla Firefox before 17.0 uses a privileged context for execution of JavaScript code by bookmarklets, which allows user-assisted remote attackers to run arbitrary programs by leveraging a javascript: URL in a bookmark.

CVE-2005-0147 [HIGH] CVE-2005-0147: Firefox before 1.0 and Mozilla before 1.7.5, when configured to use a proxy, respond to 407 proxy au Firefox before 1.0 and Mozilla before 1.7.5, when configured to use a proxy, respond to 407 proxy auth requests from arbitrary servers, which allows remote attackers to steal NTLM or SPNEGO credentials.

CVE-2018-12366 [MEDIUM] CWE-125 CVE-2018-12366: An invalid grid size during QCMS (color profile) transformations can result in the out-of-bounds rea An invalid grid size during QCMS (color profile) transformations can result in the out-of-bounds read interpreted as a float value. This could leak private data into the output. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

CVE-2012-1955 [MEDIUM] CVE-2012-1955: 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 allow remote attackers to spoof the address bar via vectors involving history.forward and history.back calls.

CVE-2013-1730 [MEDIUM] CWE-119 CVE-2013-1730: Mozilla Firefox before 24.0, Firefox ESR 17.x before 17.0.9, Thunderbird before 24.0, Thunderbird ES Mozilla Firefox before 24.0, Firefox ESR 17.x before 17.0.9, Thunderbird before 24.0, Thunderbird ESR 17.x before 17.0.9, and SeaMonkey before 2.21 do not properly handle movement of XBL-backed nodes between documents, which allows remote attackers to execute arbitrary code or cause a denial of service (JavaScript compartment mismatch, or assertion fa

CVE-2015-4512 [MEDIUM] CWE-119 CVE-2015-4512: gfx/2d/DataSurfaceHelpers.cpp in Mozilla Firefox before 41.0 on Linux improperly attempts to use the gfx/2d/DataSurfaceHelpers.cpp in Mozilla Firefox before 41.0 on Linux improperly attempts to use the Cairo library with 32-bit color-depth surface creation followed by 16-bit color-depth surface display, which allows remote attackers to obtain sensitive information from process memory or cause a denial of service (out-of-bounds read) by using a CANVAS

CVE-2017-7830 [MEDIUM] CVE-2017-7830: The Resource Timing API incorrectly revealed navigations in cross-origin iframes. This is a same-ori The Resource Timing API incorrectly revealed navigations in cross-origin iframes. This is a same-origin policy violation and could allow for data theft of URLs loaded by users. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.

CVE-2015-4520 [MEDIUM] CWE-254 CVE-2015-4520: Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS p Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS preflight protection mechanisms by leveraging (1) duplicate cache-key generation or (2) retrieval of a value from an incorrect HTTP Access-Control-* response header.

CVE-2026-109712 Mozilla Foundation Security Advisory 2026-106: CVE-2026-109712 Mozilla Foundation Security Advisory 2026-106 CVE: CVE-2026-109712 Product: Firefox Impact: low Fixed in: Firefox 158

CVE-2018-18495 [MEDIUM] CWE-732 CVE-2018-18495: WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an extension to interfere with the loading and usage of these pages and use capabilities that were intended to be restricted from extensions. This vulnerability affects Firefox < 64.

CVE-2012-4193 [MEDIUM] CWE-346 CVE-2012-4193: Mozilla Firefox before 16.0.1, Firefox ESR 10.x before 10.0.9, Thunderbird before 16.0.1, Thunderbir Mozilla Firefox before 16.0.1, Firefox ESR 10.x before 10.0.9, Thunderbird before 16.0.1, Thunderbird ESR 10.x before 10.0.9, and SeaMonkey before 2.13.1 omit a security check in the defaultValue function during the unwrapping of security wrappers, which allows remote attackers to bypass the Same Origin Policy and read the properties of a Location obj

CVE-2018-12397 [HIGH] CWE-200 CVE-2018-12397: A WebExtension can request access to local files without the warning prompt stating that the extensi A WebExtension can request access to local files without the warning prompt stating that the extension will "Access your data for all websites" being displayed to the user. This allows extensions to run content scripts in local pages without permission warnings when a local file is opened. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63

CVE-2016-9067 [MEDIUM] CWE-416 CVE-2016-9067: Two use-after-free errors during DOM operations resulting in potentially exploitable crashes. This v Two use-after-free errors during DOM operations resulting in potentially exploitable crashes. This vulnerability affects Firefox < 50.

CVE-2021-43536 [MEDIUM] CWE-200 CVE-2021-43536: Under certain circumstances, asynchronous functions could have caused a navigation to fail but expos Under certain circumstances, asynchronous functions could have caused a navigation to fail but expose the target URL. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.