{"id":"CVE-2026-92022","published":"2026-09-15T12:33:42Z","modified":"2026-09-20T00:17:09Z","title":"Use-after-free in the DOM: HTML Parser component","vendor":"Mozilla","product":"Firefox","tier":"tail","description":{"text":"Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.","provenance":"source","from":"CVE.org"},"cvss":{"score":8.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","provenance":"source","from":"CISA ADP Vulnrichment"},"epss":{"score":0.00319,"percentile":0.24813,"provenance":"source"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2068059","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-90/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-91/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-92/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-93/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-94/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-95/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-96/","tags":[]}],"priority":{"score":11.1,"factors":[{"name":"EPSS percentile","points":4.96},{"name":"CVSS severity","points":6.16}]},"vendorSlug":"mozilla","euvd":{"id":"EUVD-2026-78485","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-mozilla-firefox-cwe-416"}}