{"action":"Upgrade biosig to 3.9.5-1 or later.","affected":[{"fixed":"3.9.5-1","introduced":"0"}],"component":"biosig","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["3.9.5-1"],"id":"tcs_01M5NP126N2FP3HC5WRDF6FQ66","modified_at":"2026-09-01T20:05:53.883517176Z","published_at":"2025-08-25T14:15:32.627Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-53557","https://security-tracker.debian.org/tracker/CVE-2025-53557"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-53557#Debian:14/biosig","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-53557"}],"summary":"A heap-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted MFER file can lead to arbitr"}