Stack-based Buffer Overflow in The Biosig Project libbiosig by Vendor
CVE-2025-66048

9.8CRITICAL

Key Information:

Vendor

The BiOSig Project

Status
LibbiOSig
Vendor
CVE Published:
11 December 2025

What is CVE-2025-66048?

Multiple stack-based buffer overflow vulnerabilities have been identified within the MFER parsing functionality of The Biosig Project's libbiosig 3.9.1. An attacker can exploit these vulnerabilities by providing a specially crafted MFER file, which can potentially lead to arbitrary code execution, compromising the integrity of the affected system.

Affected Version(s)

libbiosig 3.9.1

References

https://talosintelligence.com/vulnerability_reports/TALOS...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Discovered by Mark Bereza and Lilith >_> of Cisco Talos.
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CVE-2025-66048 : Stack-based Buffer Overflow in The Biosig Project libbiosig by Vendor