CVE-2025-54493_CVE-2025-54493

9.8 / 10

CRITICAL

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

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 9184 of biosig.c on the current master branch (35a819fa), when the Tag is 131:

else if (tag==131) //0x83
{
// Patient Age
if (len!=7) fprintf(stderr,"Warning MFER tag131 incorrect length %i!=7\n",len);
curPos += ifread(buf,1,len,hdr);

Basic Information

ID CVE-2025-54493

Source talos

Published Aug 25, 2025 at 13:53

Affected Product

Vendor The Biosig Project

Product libbiosig

Version 3.9.0

Affected Versions The Biosig Project libbiosig 3.9.0
The Biosig Project libbiosig Master Branch (35a819fa)

CWE Classification

CWE-121

References

talosintelligence.com /vulnerability_reports/TALOS-2025-2234

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    "published": "2025-08-25T13:53:46.822Z",
    "modified": "2025-08-25T13:53:46.822Z",
    "type": "cve",
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