Stack-Based Buffer Overflow in Biosig Project's Library
CVE-2025-46411

8.1HIGH

Key Information:

Vendor

The BiOSig Project

Status
LibbiOSig
Vendor
CVE Published:
25 August 2025

What is CVE-2025-46411?

A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of libbiosig, specifically in version 3.9.0 and the Master Branch (35a819fa). By crafting a malicious MFER file, an attacker can exploit this vulnerability to execute arbitrary code on the target system. This poses a significant risk as attackers can leverage this flaw to gain control over affected systems, highlighting the need for immediate patches and updates.

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Affected Version(s)

libbiosig 3.9.0

libbiosig Master Branch (35a819fa)

References

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

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
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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