CVEvulnerability
CVE-2025-54486
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2025-08-25
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-121
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 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);
Affected configurations
• libbiosig project libbiosig (< 3.9.1)
Related
Weakness · CWE (1)
- CWE-121 Stack-based Buffer Overflow weakness
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234 Exploit, Third Party Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2234 www.talosintelligence.com