by Kastro
Paper/Archive/CVE-2025-54494

CVE-2025-54494

The Biosig Project libbiosig — A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Bra…

EPSS 0.7%CVSS 9.8
critical.is priorityof 100
40
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 52.5.525 × 2010.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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: else if (tag==133) //0x85 { curPos += ifread(buf,1,len,hdr);

Affected

ProductAffectedFixed inSource
libbiosig3.9.0–CNA
libbiosigMaster Branch (35a819fa)–CNA

Scores by source

talos (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

reftalosintelligence.com/vulnerability_reports/TALOS-2025-2234reftalosintelligence.com/vulnerability_reports/TALOS-2025-2234