{"id":"CVE-2026-92018","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-92018","generatedAt":"2026-09-20T15:01:26.996Z","title":"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.","description":"Sandbox escape in the DOM: Core & HTML 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.","published":"2026-09-15T13:16:52.000Z","lastModified":"2026-09-20T01:16:35.000Z","status":"Awaiting Analysis","sourceIdentifier":"security@mozilla.org","cvss":{"version":"3.1","score":9.6,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"},"cwe":["CWE-693"],"affected":[],"epss":{"score":0.0016,"percentile":0.0561,"date":"2026-09-19","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2064287","source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-90/","source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-91/","source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-92/","source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-93/","source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-94/","source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-95/","source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-96/","source":"security@mozilla.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-92018","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}