{"id":"CVE-2025-54493","aliases":["DEBIAN-CVE-2025-54493","EUVD-2025-25670","GHSA-fpmx-6rcq-vh9p","UBUNTU-CVE-2025-54493"],"status":"published","title":"A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The...","description":"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 9184 of biosig.c on the current master branch (35a819fa), when the Tag is 131:\r\n\r\n                else if (tag==131)    //0x83\r\n                {\r\n                    // Patient Age\r\n                    if (len!=7) fprintf(stderr,\"Warning MFER tag131 incorrect length %i!=7\\n\",len);\r\n                    curPos += ifread(buf,1,len,hdr);","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00682,"percentile":0.52977,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-121"],"published":"2025-08-25T13:53:46Z","modified":"2026-10-17T12:58:37Z","fixes":[{"ecosystem":"Debian:14","package":"biosig","fixed_in":["3.9.5-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"biosig","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"]},{"source":"osv","ecosystem":"Debian:13","package":"biosig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.9.0-1","3.9.5-1"]},{"source":"osv","ecosystem":"Debian:14","package":"biosig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.9.5-1"}]}],"versions":["3.9.0-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"biosig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.2-4","2.1.2-4build1","2.1.2-4build2","2.3.3-1","2.3.3-1build1","2.3.3-1build2","2.3.3-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"biosig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.0-1build2","2.5.2-1","2.5.2-1build1","2.5.2-2","2.6.0-1","2.6.0-1build1","2.6.0-1ubuntu1","2.6.0-1ubuntu1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"biosig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6.1-1build3","3.9.0-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"biosig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.9.0-1build3","3.9.5-1","3.9.5-1build1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:26.04:LTS","package":"biosig","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.9.0-1","3.9.0-1build1","3.9.0-1build2","3.9.0-1build3","3.9.0-1ubuntu0.1~esm1"]}],"products":[{"vendor":"libbiosig_project","product":"libbiosig"},{"vendor":"the biosig project","product":"libbiosig"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234","tags":["Exploit","Third Party Advisory","evidence","report"]},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2234","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-54493"},{"url":"https://github.com/advisories/GHSA-fpmx-6rcq-vh9p"},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-54493","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-54493","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-54493","tags":["report"]},{"url":"https://sourceforge.net/p/biosig/mailman/message/59224259/","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2025-54493","description":"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 9184 of biosig.c on the current master branch (35a819fa), when the Tag is 131:\r\n\r\n                else if (tag==131)    //0x83\r\n                {\r\n                    // Patient Age\r\n                    if (len!=7) fprintf(stderr,\"Warning MFER tag131 incorrect length %i!=7\\n\",len);\r\n                    curPos += ifread(buf,1,len,hdr);","status":"published","published":"2025-08-25T13:53:46.822Z","modified":"2025-11-03T18:13:34.435Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:32:27.603809Z"}],"euvd":[{"id":"EUVD-2025-25670","description":"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 9184 of biosig.c on the current master branch (35a819fa), when the Tag is 131:\r\n\r\n                else if (tag==131)    //0x83\r\n                {\r\n                    // Patient Age\r\n                    if (len!=7) fprintf(stderr,\"Warning MFER tag131 incorrect length %i!=7\\n\",len);\r\n                    curPos += ifread(buf,1,len,hdr);","status":"published","published":"2025-08-25T13:53:46Z","modified":"2025-11-03T18:13:34Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T19:49:34.635725Z"}],"ghsa":[{"id":"GHSA-fpmx-6rcq-vh9p","title":"A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The...","description":"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 9184 of biosig.c on the current master branch (35a819fa), when the Tag is 131:\n\n                else if (tag==131)    //0x83\n                {\n                    // Patient Age\n                    if (len!=7) fprintf(stderr,\"Warning MFER tag131 incorrect length %i!=7\\n\",len);\n                    curPos += ifread(buf,1,len,hdr);","status":"published","published":"2025-08-25T15:32:01Z","modified":"2025-11-03T21:34:26Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:04:24.41654Z"}],"nvd":[{"id":"CVE-2025-54493","description":"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 9184 of biosig.c on the current master branch (35a819fa), when the Tag is 131:\r\n\r\n                else if (tag==131)    //0x83\r\n                {\r\n                    // Patient Age\r\n                    if (len!=7) fprintf(stderr,\"Warning MFER tag131 incorrect length %i!=7\\n\",len);\r\n                    curPos += ifread(buf,1,len,hdr);","status":"published","published":"2025-08-25T14:15:36.037Z","modified":"2026-06-17T09:40:12.283Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:11:25.826804Z"}],"osv":[{"id":"CVE-2025-54493","description":"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 9184 of biosig.c on the current master branch (35a819fa), when the Tag is 131:\r\n\r\n                else if (tag==131)    //0x83\r\n                {\r\n                    // Patient Age\r\n                    if (len!=7) fprintf(stderr,\"Warning MFER tag131 incorrect length %i!=7\\n\",len);\r\n                    curPos += ifread(buf,1,len,hdr);","status":"published","published":"2025-08-25T14:15:36.037Z","modified":"2026-04-10T05:29:35.976551Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:50.863921Z"},{"id":"DEBIAN-CVE-2025-54493","description":"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 9184 of biosig.c on the current master branch (35a819fa), when the Tag is 131:\r \r                 else if (tag==131)    //0x83\r                 {\r                     // Patient Age\r                     if (len!=7) fprintf(stderr,\"Warning MFER tag131 incorrect length %i!=7\\n\",len);\r                     curPos += ifread(buf,1,len,hdr);","status":"published","published":"2025-08-25T14:15:36.037Z","modified":"2026-09-01T20:05:54.635751445Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:47.378563Z"},{"id":"UBUNTU-CVE-2025-54493","description":"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 9184 of biosig.c on the current master branch (35a819fa), when the Tag is 131:                 else if (tag==131)    //0x83                 {                     // Patient Age                     if (len!=7) fprintf(stderr,\"Warning MFER tag131 incorrect length %i!=7\\n\",len);                     curPos += ifread(buf,1,len,hdr);","status":"published","published":"2025-08-25T14:15:00Z","modified":"2026-10-17T12:58:37.552800896Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T16:55:50.817402Z"}]}}