🛡️ CVE-2025-54493
🔴 CVSS 9.8 — Critical ⚠️ Exploit Public CWE-121 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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);

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-121
Public Exploit ⚠️ Yes
Source NVD
Published 2025-08-25
Updated 2026-06-02
Modified 2025-11-03
Fix URL N/A

Affected Packages

Software From version Fixed in
libbiosig — 3.9.1

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