CVE-2025-52461: Libbiosig Project Libbiosig

Critical severity, CVSS 9.1. EPSS: 0.5% chance of exploitation in the next 30 days.

An out-of-bounds read vulnerability exists in the Nex parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted .nex file can lead to an information leak. An attacker can provide a malicious file to trigger this vulnerability.

Affected products

• Libbiosig Project Libbiosig: version 3.9.0 only

Published 2025-08-25. Last modified 2026-06-17.