{"id":"CVE-2017-9051","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-9051","generatedAt":"2026-10-28T23:38:24.293Z","title":"libav before 12.1 is vulnerable to an invalid read of size 1 due to NULL pointer dereferencing in the nsv_read_chunk function in libavformat/nsvdec.c.","description":"libav before 12.1 is vulnerable to an invalid read of size 1 due to NULL pointer dereferencing in the nsv_read_chunk function in libavformat/nsvdec.c.","published":"2017-05-18T06:29:01.000Z","lastModified":"2026-06-17T01:27:24.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-476"],"affected":["libav/libav"],"epss":{"score":0.01906,"percentile":0.79624,"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 (1.91%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/98548","source":"cve@mitre.org"},{"url":"https://bugzilla.libav.org/show_bug.cgi?id=1039","tags":["Issue Tracking"],"source":"cve@mitre.org"},{"url":"https://github.com/libav/libav/commit/fe6eea99efac66839052af547426518efd970b24","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/98548","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.libav.org/show_bug.cgi?id=1039","tags":["Issue Tracking"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/libav/libav/commit/fe6eea99efac66839052af547426518efd970b24","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-9051","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."}