CVE-2026-22891 — CRITICAL (9.8)

Vulnerability Description

A heap-based buffer overflow vulnerability exists in the Intan CLP parsing functionality of The Biosig Project libbiosig 3.9.2 and Master Branch (db9a9a63). A specially crafted Intan CLP 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	3.9.2

Related Weaknesses (CWE)

CWE-122

References

https://talosintelligence.com/vulnerability_reports/TALOS-2026-2361ExploitThird Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2361ExploitThird Party Advisory

FAQ

What is CVE-2026-22891?

CVE-2026-22891 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A heap-based buffer overflow vulnerability exists in the Intan CLP parsing functionality of The Biosig Project libbiosig 3.9.2 and Master Branch (db9a9a63). A specially crafted Intan CLP file can lead...

How severe is CVE-2026-22891?

CVE-2026-22891 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-2026-22891?

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