CVE-2025-54486

critical · 9.8

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 8824 of biosig.c on the current master branch (35a819fa), when the Tag is 11: else if (tag==11) //0x0B { // Fs if (len>6) fprintf(stderr,"Warning MFER tag11 incorrect length %i>6\n",len); double fval; curPos += ifread(buf,1,len,hdr);

9.8

CVSS

0.7%

EPSS (exploit prob.)

51st

EPSS percentile

2025-08-25

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-121

Affected products

Vendor	Product	Affected versions
libbiosig_project	libbiosig	< 3.9.1

Check a specific version with /api/v1/cve/match.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234
https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2234

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-54486