{"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_01M5NFDW65WM8SFA3VRH14J39M","modified_at":"2026-08-27T23:03:59.052182331Z","published_at":"2021-08-25T19:15:09.023Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-21840","https://security-tracker.debian.org/tracker/CVE-2021-21840"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-21840","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-21840"}],"summary":"An exploitable integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input used to process a"}