CVE-2025-54485

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 8785 of biosig.c on the current master branch (35a819fa), when the Tag is 8: else if (tag==8) { if (len>2) fprintf(stderr,"Warning MFER tag8 incorrect length %i>2\n",len); curPos += ifread(buf,1,len,hdr);

• CWE-121

• https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234Exploit, Third Party Advisory
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2234

Published

Aug 25, 2025

Last Modified

Jun 17, 2026

Status

Modified

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