{"id":"DEBIAN-CVE-2025-54494","details":"A stack-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 arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.This vulnerability manifests on line 9205 of biosig.c on the current master branch (35a819fa), when the Tag is 133:\r \r                 else if (tag==133)    //0x85\r                 {\r                     curPos += ifread(buf,1,len,hdr);","modified":"2026-09-01T20:05:54.524166641Z","published":"2025-08-25T14:15:36.230Z","upstream":["CVE-2025-54494"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-54494"}],"affected":[{"package":{"name":"biosig","ecosystem":"Debian:12","purl":"pkg:deb/debian/biosig?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.0-1","2.5.2-1","2.5.2-2","2.6.0-1","2.6.1-1","3.9.0-1","3.9.5-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54494.json"}},{"package":{"name":"biosig","ecosystem":"Debian:13","purl":"pkg:deb/debian/biosig?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.9.0-1","3.9.5-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54494.json"}},{"package":{"name":"biosig","ecosystem":"Debian:14","purl":"pkg:deb/debian/biosig?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.9.5-1"}]}],"versions":["3.9.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54494.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}