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Fencer Vulns
critical 9.8

CVE-2026-22891 json

A heap-based buffer overflow vulnerability exists in the Intan CLP parsing functionality of The Biosig Project libbiosig 3.9.2 and Master B…

published 2026-03-03 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-9292

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

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.

Patch / fix

  • biosig Debian 14 3.9.5-1

debian advisories DEBIAN-CVE-2026-22891

  • biosig Ubuntu Pro 22.04 LTS 2.3.3-1ubuntu0.1~esm1
  • biosig Ubuntu Pro 24.04 LTS 2.6.0-1ubuntu1+esm1
  • biosig Ubuntu Pro 26.04 LTS 3.9.0-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2026-22891

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
8 mo ago

Exploit prediction

0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2026-2361 referenced PoC, tagged "exploit" by a source, unverified
  • talosintelligence.com https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2361 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • The Biosig Project libbiosig

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.