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 8719 of biosig.c on the current master branch (35a819fa), when the Tag is 0:

if (tag==0) {
if (len!=1) fprintf(stderr,"Warning MFER tag0 incorrect length %i!=1\n",len);
curPos += ifread(buf,1,len,hdr);
}
Published: 2025-08-25
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2025-25683 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 8719 of biosig.c on the current master branch (35a819fa), when the Tag is 0: if (tag==0) { if (len!=1) fprintf(stderr,"Warning MFER tag0 incorrect length %i!=1\n",len); curPos += ifread(buf,1,len,hdr); }
History

Mon, 03 Nov 2025 19:30:00 +0000


Tue, 02 Sep 2025 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Libbiosig Project
Libbiosig Project libbiosig
CPEs cpe:2.3:a:libbiosig_project:libbiosig:*:*:*:*:*:*:*:*
Vendors & Products Libbiosig Project
Libbiosig Project libbiosig

Tue, 26 Aug 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 25 Aug 2025 22:15:00 +0000

Type Values Removed Values Added
First Time appeared The Biosig Project
The Biosig Project libbiosig
Vendors & Products The Biosig Project
The Biosig Project libbiosig

Mon, 25 Aug 2025 14:00:00 +0000

Type Values Removed Values Added
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 8719 of biosig.c on the current master branch (35a819fa), when the Tag is 0: if (tag==0) { if (len!=1) fprintf(stderr,"Warning MFER tag0 incorrect length %i!=1\n",len); curPos += ifread(buf,1,len,hdr); }
Weaknesses CWE-121
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

Libbiosig Project Libbiosig
The Biosig Project Libbiosig
cve-icon MITRE

Status: PUBLISHED

Assigner: talos

Published:

Updated: 2025-11-03T18:13:21.587Z

Reserved: 2025-07-23T14:45:55.834Z

Link: CVE-2025-54480

cve-icon Vulnrichment

Updated: 2025-08-26T20:03:38.470Z

cve-icon NVD

Status : Modified

Published: 2025-08-25T14:15:33.510

Modified: 2025-11-03T19:16:09.823

Link: CVE-2025-54480

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-08-25T21:53:07Z

Weaknesses