Heap-based Buffer Overflow Vulnerability in Biosig Project Product
CVE-2026-22891

9.8CRITICAL

Key Information:

Vendor

The BiOSig Project

Status
LibbiOSig
Vendor
CVE Published:
3 March 2026

What is CVE-2026-22891?

A heap-based buffer overflow vulnerability exists in the Intan CLP parsing functionality of libbiosig, version 3.9.2 and the Master Branch (db9a9a63). This vulnerability can be exploited by providing a specially crafted Intan CLP file, which may lead to arbitrary code execution on the affected system. Attackers could leverage this flaw to execute malicious code, thereby compromising the security and integrity of the application.

Affected Version(s)

libbiosig 3.9.2

libbiosig Master Branch (db9a9a63)

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.
.