{"id":"CVE-2026-2447","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-2447","generatedAt":"2026-10-28T07:25:11.886Z","title":"Heap buffer overflow in libvpx.","description":"Heap buffer overflow in libvpx. This vulnerability was fixed in Firefox 147.0.4, Firefox ESR 140.7.1, Firefox ESR 115.32.1, Thunderbird 140.7.2, and Thunderbird 147.0.2.","published":"2026-02-16T15:18:35.000Z","lastModified":"2026-07-15T02:19:31.000Z","status":"Modified","sourceIdentifier":"security@mozilla.org","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-122"],"affected":["mozilla/firefox","mozilla/thunderbird"],"epss":{"score":0.00699,"percentile":0.52927,"date":"2026-10-27","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 (0.70%). 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