{"affected":[{"product":"Firefox","source":"CNA: mozilla","vendor":"Mozilla","versions":[{"lessThanOrEqual":"115.*","status":"unaffected","version":"115.45","versionType":"rpm"},{"lessThanOrEqual":"153.*","status":"unaffected","version":"153.7","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"160","versionType":"rpm"}]}],"cveId":"CVE-2026-124858","cwes":["CWE-416"],"description":"Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.8,"severity":"high","source":"ADP: CISA-ADP","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794321909677,"publishedAt":1794317286892,"references":[{"source":"CNA: mozilla","tags":[],"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2074172"},{"source":"CNA: mozilla","tags":[],"url":"https://www.mozilla.org/security/advisories/mfsa2026-125/"},{"source":"CNA: mozilla","tags":[],"url":"https://www.mozilla.org/security/advisories/mfsa2026-126/"},{"source":"CNA: mozilla","tags":[],"url":"https://www.mozilla.org/security/advisories/mfsa2026-127/"}],"remediation":[],"revision":"10a9694cbfa88f33e151b4a5be7ee54d4232caea08c8ebb65ca626cc0ef8e8fd","sources":[{"modifiedAt":1794321909677,"name":"CNA: mozilla","retrievedAt":1794323375976,"url":"https://www.cve.org/CVERecord?id=CVE-2026-124858"}],"ssvc":{"assessedAt":1794321330619,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"Use-after-free in the DOM: HTML Parser component","updatedAt":1794323375976}