Mozilla Firefox vulnerabilities

CVE-2012-0459 [HIGH] CWE-264 CVE-2012-0459: The Cascading Style Sheets (CSS) implementation in Mozilla Firefox 4.x through 10.0, Firefox ESR 10. The Cascading Style Sheets (CSS) implementation 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 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via dynamic modification of a keyframe

CVE-2014-8634 [HIGH] CVE-2014-8634: Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 35.0, Firefox E Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 35.0, Firefox ESR 31.x before 31.4, Thunderbird before 31.4, and SeaMonkey before 2.32 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

CVE-2025-1938 [MEDIUM] CWE-787 CVE-2025-1938: Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7 Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderb

CVE-2025-3608 [MEDIUM] CWE-362 CVE-2025-3608: A race condition existed in nsHttpTransaction that could have been exploited to cause memory corrupt A race condition existed in nsHttpTransaction that could have been exploited to cause memory corruption, potentially leading to an exploitable condition. This vulnerability was fixed in Firefox 137.0.2.

CVE-2016-1526 [HIGH] CWE-119 CVE-2016-1526: The TtfUtil:LocaLookup function in TtfUtil.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozill The TtfUtil:LocaLookup function in TtfUtil.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, incorrectly validates a size value, which allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smar

CVE-2026-6763 [MEDIUM] CWE-693 CVE-2026-6763: Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firef Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

CVE-2025-4088 [MEDIUM] CWE-352 CVE-2025-4088: A security vulnerability in Thunderbird allowed malicious sites to use redirects to send credentiale A security vulnerability in Thunderbird allowed malicious sites to use redirects to send credentialed requests to arbitrary endpoints on any site that had invoked the Storage Access API. This enabled potential Cross-Site Request Forgery attacks across origins. This vulnerability was fixed in Firefox 138 and Thunderbird 138.

CVE-2015-7205 [CRITICAL] CWE-189 CVE-2015-7205: Integer underflow in the RTPReceiverVideo::ParseRtpPacket function in Mozilla Firefox before 43.0 an Integer underflow in the RTPReceiverVideo::ParseRtpPacket function in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.5 might allow remote attackers to obtain sensitive information, cause a denial of service, or possibly have unspecified other impact by triggering a crafted WebRTC RTP packet.

CVE-2011-3652 [CRITICAL] CWE-119 CVE-2011-3652: The browser engine in Mozilla Firefox before 8.0 and Thunderbird before 8.0 does not properly alloca The browser engine in Mozilla Firefox before 8.0 and Thunderbird before 8.0 does not properly allocate memory, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unspecified vectors.

CVE-2007-2868 [CRITICAL] CWE-94 CVE-2007-2868: Multiple vulnerabilities in the JavaScript engine for Mozilla Firefox 1.5.x before 1.5.0.12 and 2.x Multiple vulnerabilities in the JavaScript engine for Mozilla Firefox 1.5.x before 1.5.0.12 and 2.x before 2.0.0.4, Thunderbird 1.5.x before 1.5.0.12 and 2.x before 2.0.0.4, and SeaMonkey 1.0.9 and 1.1.2 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via vectors that trigger memory corruption.

CVE-2016-9897 [HIGH] CWE-119 CVE-2016-9897: Memory corruption resulting in a potentially exploitable crash during WebGL functions using a vector Memory corruption resulting in a potentially exploitable crash during WebGL functions using a vector constructor with a varying array within libGLES. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.

CVE-2005-0399 [MEDIUM] CVE-2005-0399: Heap-based buffer overflow in GIF2.cpp in Firefox before 1.0.2, Mozilla before to 1.7.6, and Thunder Heap-based buffer overflow in GIF2.cpp in Firefox before 1.0.2, Mozilla before to 1.7.6, and Thunderbird before 1.0.2, and possibly other applications that use the same library, allows remote attackers to execute arbitrary code via a GIF image with a crafted Netscape extension 2 block and buffer size.

CVE-2012-0452 [HIGH] CWE-399 CVE-2012-0452: Use-after-free vulnerability in Mozilla Firefox 10.x before 10.0.1, Thunderbird 10.x before 10.0.1, Use-after-free vulnerability in Mozilla Firefox 10.x before 10.0.1, Thunderbird 10.x before 10.0.1, and SeaMonkey 2.7 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors that trigger failure of an nsXBLDocumentInfo::ReadPrototypeBindings function call, related to the cycle collector's ac

CVE-2010-0173 [CRITICAL] CVE-2010-0173: Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.5.9 and 3.6.x Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.5.9 and 3.6.x before 3.6.2, Thunderbird before 3.0.4, and SeaMonkey before 2.0.4 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

CVE-2015-7192 [HIGH] CWE-17 CVE-2015-7192: The accessibility-tools feature in Mozilla Firefox before 42.0 on OS X improperly interacts with the The accessibility-tools feature in Mozilla Firefox before 42.0 on OS X improperly interacts with the implementation of the TABLE element, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code by using an NSAccessibilityIndexAttribute value to reference a row index.

CVE-2019-11729 [HIGH] CWE-119 CVE-2019-11729: Empty or malformed p256-ECDH public keys may trigger a segmentation fault due values being improperl Empty or malformed p256-ECDH public keys may trigger a segmentation fault due values being improperly sanitized before being copied into memory and used. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

CVE-2021-23981 [HIGH] CWE-787 CVE-2021-23981: A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buf A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

CVE-2008-2806 [HIGH] CWE-20 CVE-2008-2806: Mozilla Firefox before 2.0.0.15 and SeaMonkey before 1.1.10 on Mac OS X allow remote attackers to by Mozilla Firefox before 2.0.0.15 and SeaMonkey before 1.1.10 on Mac OS X allow remote attackers to bypass the Same Origin Policy and create arbitrary socket connections via a crafted Java applet, related to the Java Embedding Plugin (JEP) and Java LiveConnect.

CVE-2007-3073 [HIGH] CVE-2007-3073: Directory traversal vulnerability in Mozilla Firefox 2.0.0.4 and earlier on Mac OS X and Unix allows Directory traversal vulnerability in Mozilla Firefox 2.0.0.4 and earlier on Mac OS X and Unix allows remote attackers to read arbitrary files via ..%2F (dot dot encoded slash) sequences in a resource:// URI.

CVE-2010-1203 [CRITICAL] CVE-2010-1203: The JavaScript engine in Mozilla Firefox 3.6.x before 3.6.4 allow remote attackers to cause a denial The JavaScript engine in Mozilla Firefox 3.6.x before 3.6.4 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors that trigger an assertion failure in jstracer.cpp.