{"id":"JLSEC-2026-648","details":"A heap-buffer-overflow write exists in jpeg2000dec FFmpeg which allows an attacker to potentially gain remote code execution or cause denial of service via the channel definition cdef atom of JPEG2000.","modified":"2026-06-26T20:30:05.272902490Z","published":"2026-06-26T20:24:16.337Z","upstream":["CVE-2025-9951","EUVD-2025-27255"],"database_specific":{"license":"CC-BY-4.0","sources":[{"imported":"2026-06-26T19:19:12.222Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-9951","id":"CVE-2025-9951","modified":"2026-06-17T10:10:08.627Z","published":"2025-09-09T14:15:49.720Z","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2025-9951","database_specific":{"status":"Deferred"}},{"modified":"2026-02-26T17:49:05Z","imported":"2026-06-26T19:19:09.422Z","id":"EUVD-2025-27255","published":"2025-09-09T13:54:08Z","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-27255","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2025-27255"}]},"references":[{"type":"WEB","url":"https://github.com/google/security-research/security/advisories/GHSA-39q3-f8jq-v6mg"}],"affected":[{"package":{"name":"FFMPEG_jll","ecosystem":"Julia","purl":"pkg:julia/FFMPEG_jll?uuid=b22a6f82-2f65-5046-a5b2-351ab43fb4e5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.0.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-648.json"}},{"package":{"name":"FFplay_jll","ecosystem":"Julia","purl":"pkg:julia/FFplay_jll?uuid=c4dce911-e170-5107-8314-c7bdc6785395"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.1.2+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-648.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H"}]}