Mozilla Firefox vulnerabilities
3,702 known vulnerabilities affecting mozilla/firefox.
Total CVEs
3,702
CISA KEV
15
actively exploited
Public exploits
126
Exploited in wild
34
Severity breakdown
CRITICAL981HIGH1095MEDIUM1343LOW68UNKNOWN215
Vulnerabilities
Page 145 of 186
CVE-2015-7217P4MEDIUMCVSS 4.3≤ 42.02015-12-16
CVE-2015-7217 [MEDIUM] CWE-119 CVE-2015-7217: The gdk-pixbuf configuration in Mozilla Firefox before 43.0 on Linux GNOME platforms incorrectly ena
The gdk-pixbuf configuration in Mozilla Firefox before 43.0 on Linux GNOME platforms incorrectly enables the TGA decoder, which allows remote attackers to cause a denial of service (heap-based buffer overflow) via a crafted Truevision TGA image.
nvdosv
CVE-2025-8041P4MEDIUMCVSS 5.3fixed in 141.02025-08-19
CVE-2025-8041 [MEDIUM] CWE-451 CVE-2025-8041: In the address bar, Firefox for Android truncated the display of URLs from the end instead of priori
In the address bar, Firefox for Android truncated the display of URLs from the end instead of prioritizing the origin. This vulnerability was fixed in Firefox 141.
nvd
CVE-2026-6777P4MEDIUMCVSS 5.3fixed in 150.02026-04-21
CVE-2026-6777 [MEDIUM] CWE-20 CVE-2026-6777: Other issue in the Networking: DNS component. This vulnerability was fixed in Firefox 150 and Thunde
Other issue in the Networking: DNS component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
nvdmozilla
CVE-2025-0243P4MEDIUMCVSS 5.1fixed in 128.6.0fixed in 133.02025-01-07
CVE-2025-0243 [MEDIUM] CWE-787 CVE-2025-0243: Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5
Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 134, Firefox ESR 128.6, Thunderbird 134, and Thunderb
nvd
CVE-2015-0822P4MEDIUMCVSS 4.3≤ 35.0.1v0.1+214 more2015-02-25
CVE-2015-0822 [MEDIUM] CWE-200 CVE-2015-0822: The Form Autocompletion feature in Mozilla Firefox before 36.0, Firefox ESR 31.x before 31.5, and Th
The Form Autocompletion feature in Mozilla Firefox before 36.0, Firefox ESR 31.x before 31.5, and Thunderbird before 31.5 allows remote attackers to read arbitrary files via crafted JavaScript code.
nvdosv
CVE-2005-2706P4MEDIUMCVSS 6.4≤ 1.0.6v1.0+5 more2005-09-23
CVE-2005-2706 [MEDIUM] CVE-2005-2706: Firefox before 1.0.7 and Mozilla before Suite 1.7.12 allows remote attackers to execute Javascript w
Firefox before 1.0.7 and Mozilla before Suite 1.7.12 allows remote attackers to execute Javascript with chrome privileges via an about: page such as about:mozilla.
nvd
CVE-2011-3062P4MEDIUMCVSS 6.8fixed in 10.0.4fixed in 12.02012-03-30
CVE-2011-3062 [MEDIUM] CWE-682 CVE-2011-3062: Off-by-one error in the OpenType Sanitizer in Google Chrome before 18.0.1025.142 allows remote attac
Off-by-one error in the OpenType Sanitizer in Google Chrome before 18.0.1025.142 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted OpenType file.
nvd
CVE-2012-4205P4MEDIUMCVSS 6.8fixed in 17.02012-11-21
CVE-2012-4205 [MEDIUM] CWE-352 CVE-2012-4205: Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 assign the system pr
Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 assign the system principal, rather than the sandbox principal, to XMLHttpRequest objects created in sandboxes, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks or obtain sensitive information by leveraging a sandboxed add-on.
nvd
CVE-2016-1523P4MEDIUMCVSS 6.5v38.0v38.0.1+11 more2016-02-13
CVE-2016-1523 [MEDIUM] CVE-2016-1523: The SillMap::readFace function in FeatureMap.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozi
The SillMap::readFace function in FeatureMap.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, mishandles a return value, which allows remote attackers to cause a denial of service (missing initialization, NULL pointer dereference, and application crash) via a crafted Graphite smart font.
nvd
CVE-2026-109721P4UNKNOWNfixed in Firefox 158
CVE-2026-109721 Mozilla Foundation Security Advisory 2026-106: CVE-2026-109721
Mozilla Foundation Security Advisory 2026-106
CVE: CVE-2026-109721
Product: Firefox
Impact: low
Fixed in: Firefox 158
mozilla
CVE-2026-113400P4UNKNOWNfixed in Firefox 158.0.1
CVE-2026-113400 Mozilla Foundation Security Advisory 2026-111: CVE-2026-113400
Mozilla Foundation Security Advisory 2026-111
CVE: CVE-2026-113400
Product: Firefox
Impact: low
Fixed in: Firefox 158.0.1
mozilla
CVE-2016-9077P4HIGHCVSS 7.0fixed in 50.0≥ unspecified, < 502018-06-11
CVE-2016-9077 [HIGH] CWE-362 CVE-2016-9077: Canvas allows the use of the "feDisplacementMap" filter on images loaded cross-origin. The rendering
Canvas allows the use of the "feDisplacementMap" filter on images loaded cross-origin. The rendering by the filter is variable depending on the input pixel, allowing for timing attacks when the images are loaded from third party locations. This vulnerability affects Firefox < 50.
nvdosv
CVE-2026-109731P4UNKNOWNfixed in Firefox 158
CVE-2026-109731 Mozilla Foundation Security Advisory 2026-106: CVE-2026-109731
Mozilla Foundation Security Advisory 2026-106
CVE: CVE-2026-109731
Product: Firefox
Impact: low
Fixed in: Firefox 158
mozilla
CVE-2026-117967P4UNKNOWNfixed in Firefox 159
CVE-2026-117967 Mozilla Foundation Security Advisory 2026-118: CVE-2026-117967
Mozilla Foundation Security Advisory 2026-118
CVE: CVE-2026-117967
Product: Firefox
Impact: low
Fixed in: Firefox 159
mozilla
CVE-2026-117928P4UNKNOWNfixed in Firefox 159
CVE-2026-117928 Mozilla Foundation Security Advisory 2026-118: CVE-2026-117928
Mozilla Foundation Security Advisory 2026-118
CVE: CVE-2026-117928
Product: Firefox
Impact: low
Fixed in: Firefox 159
mozilla
CVE-2026-117965P4UNKNOWNfixed in Firefox 159
CVE-2026-117965 Mozilla Foundation Security Advisory 2026-118: CVE-2026-117965
Mozilla Foundation Security Advisory 2026-118
CVE: CVE-2026-117965
Product: Firefox
Impact: low
Fixed in: Firefox 159
mozilla
CVE-2026-117921P4UNKNOWNfixed in Firefox 159
CVE-2026-117921 Mozilla Foundation Security Advisory 2026-118: CVE-2026-117921
Mozilla Foundation Security Advisory 2026-118
CVE: CVE-2026-117921
Product: Firefox
Impact: low
Fixed in: Firefox 159
mozilla
CVE-2026-117992P4UNKNOWNfixed in Firefox 159
CVE-2026-117992 Mozilla Foundation Security Advisory 2026-118: CVE-2026-117992
Mozilla Foundation Security Advisory 2026-118
CVE: CVE-2026-117992
Product: Firefox
Impact: low
Fixed in: Firefox 159
mozilla
CVE-2026-117941P4UNKNOWNfixed in Firefox 159
CVE-2026-117941 Mozilla Foundation Security Advisory 2026-118: CVE-2026-117941
Mozilla Foundation Security Advisory 2026-118
CVE: CVE-2026-117941
Product: Firefox
Impact: low
Fixed in: Firefox 159
mozilla
CVE-2026-117868P4UNKNOWNfixed in Firefox 159
CVE-2026-117868 Mozilla Foundation Security Advisory 2026-118: CVE-2026-117868
Mozilla Foundation Security Advisory 2026-118
CVE: CVE-2026-117868
Product: Firefox
Impact: low
Fixed in: Firefox 159
mozilla