{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"gpac","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:11","exploited":false,"fixed_versions":[],"id":"tcs_01M5NP2AJ5K8BZM79272D2GTYH","modified_at":"2026-08-27T23:05:15.931296384Z","published_at":"2026-06-15T20:16:23.380Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-55643","https://security-tracker.debian.org/tracker/CVE-2025-55643"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-55643","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-55643"}],"summary":"A NULL pointer dereference in the TrackWriter handling component (filters/mux_isom.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file."}