{"id":"CVE-2018-12458","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-12458","generatedAt":"2026-10-28T20:12:30.065Z","title":"An improper integer type in the mpeg4_encode_gop_header function in libavcodec/mpeg4videoenc.c in FFmpeg 2.8 and 4.0 may trigger an assertion violation while converting a crafted AVI file to MPEG4, leading to a denial of service.","description":"An improper integer type in the mpeg4_encode_gop_header function in libavcodec/mpeg4videoenc.c in FFmpeg 2.8 and 4.0 may trigger an assertion violation while converting a crafted AVI file to MPEG4, leading to a denial of service.","published":"2018-06-15T15:29:00.000Z","lastModified":"2026-06-17T01:37:49.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},"cwe":["CWE-20"],"affected":["ffmpeg/ffmpeg","debian/debian linux"],"epss":{"score":0.01509,"percentile":0.74289,"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":"low","text":"Lower severity and a low EPSS score (1.51%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/FFmpeg/FFmpeg/commit/6bbef938839adc55e8e048bc9cc2e0fafe2064df","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/FFmpeg/FFmpeg/commit/e1182fac1afba92a4975917823a5f644bee7e6e8","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2018/dsa-4249","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/FFmpeg/FFmpeg/commit/6bbef938839adc55e8e048bc9cc2e0fafe2064df","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/FFmpeg/FFmpeg/commit/e1182fac1afba92a4975917823a5f644bee7e6e8","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4249","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-12458","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."}