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CVE-2025-66046

Critical

Description

Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1. A specially crafted MFER file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger these vulnerabilities.When Tag is 67

SeverityCritical
CVSS9.8
Exploit probability—
ProductLibbiosig
PublishedDec 11, 2025
First seenDec 11, 2025
Weakness typeCWE-121CWE-121

How to fix

Update
  • libbiosig_project libbiosig3.9.2 or later

Affected products

ProductAffected versionsFixed in
libbiosig_project libbiosigv < 3.9.23.9.2

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