PT-2026-22740 · Libbiosig · Libbiosig

Mark Bereza · Published 2026-03-03 · Updated 2026-03-05 · CVE-2026-22891

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions libbiosig versions 3.9.2 and Master Branch (db9a9a63)

Description A heap-based buffer overflow exists in the Intan CLP parsing functionality. A specially crafted Intan CLP file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this issue.

Recommendations libbiosig version 3.9.2: Avoid processing untrusted or malicious Intan CLP files. libbiosig Master Branch (db9a9a63): Avoid processing untrusted or malicious Intan CLP files.

Exploit

Fix

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

BDU:2026-04345

CVE-2026-22891

Affected Products

Libbiosig

References · 15

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2026-2361 · Exploit
• https://bdu.fstec.ru/vul/2026-04345 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-22891 · Security Note
• https://osv.dev/vulnerability/CVE-2026-22891 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-22891 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-22891 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-22891 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-22891 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-22891 · Vendor Advisory
• https://t.me/cveNotify/154363 · Telegram Post
• https://twitter.com/CveFindCom/status/2028858306811376082 · Twitter Post
• https://t.me/CVEtracker/46208 · Telegram Post
• https://twitter.com/CVEnew/status/2028849467500503406 · Twitter Post
• https://twitter.com/infoflowcloud/status/2028850758066593934 · Twitter Post
• https://twitter.com/TheHackerWire/status/2028857004845043720 · Twitter Post