{"action":"Upgrade gpac to 1.0.1+dfsg1-4+deb11u1 or later.","affected":[{"fixed":"1.0.1+dfsg1-4+deb11u1","introduced":"0"}],"component":"gpac","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:11","exploited":false,"fixed_versions":["1.0.1+dfsg1-4+deb11u1"],"id":"tcs_01M5NFDYSF6Q6MNKP4ANP4GEPH","modified_at":"2026-08-27T23:03:49.101576008Z","published_at":"2021-08-16T20:15:48.597Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-21861","https://security-tracker.debian.org/tracker/CVE-2021-21861"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-21861","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-21861"}],"summary":"An exploitable integer truncation vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. When processing the 'hdlr' FOURCC code, a specia"}