CVE-2025-53557 — CRITICAL (9.8)

Vulnerability Description

A heap-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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Libbiosig Project	Libbiosig	3.9.0

Related Weaknesses (CWE)

CWE-122

References

https://talosintelligence.com/vulnerability_reports/TALOS-2025-2235ExploitThird Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2235

FAQ

What is CVE-2025-53557?

CVE-2025-53557 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A heap-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 arbitr...

How severe is CVE-2025-53557?

CVE-2025-53557 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-53557?

Check the references section above for vendor advisories and patch information. Affected products include: Libbiosig Project Libbiosig.