{"id":"CVE-2026-92079","title":"Mitigation bypass in the Widget: Win32 component","summary":"Mitigation bypass in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.","severity":"low","vendor":"Mozilla","product":"Firefox","affected":["Firefox","Thunderbird"],"published":"2026-09-15","updated":"2026-09-16","sourceUpdated":"2026-09-16T19:34:05.910","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92079","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2067531","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-90/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-93/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-94/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-96/","label":"security@mozilla.org"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92079.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-92079"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2533802"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-92079"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92079"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-90/#CVE-2026-92079"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-94/#CVE-2026-92079"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-15T13:37:33.320Z","cvss":3.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N","cvssSource":"vendor","cwe":["CWE-807"],"epss":0.00151,"epssPercentile":0.04604,"slug":"CVE-2026-92079","body":"## Overview\n\nMitigation bypass in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · updated 2026-09-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92079.json)","depth":"sunlit","depthScore":19,"depthScoreParts":{"impact":18.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":206362,"id":"CVE-2026-92079","ts":1789663223534,"field":"cvss","old":null,"new":"3.4"},{"seq":206361,"id":"CVE-2026-92079","ts":1789663223534,"field":"severity","old":"none","new":"low"}]}