CVE-2026-22891
A heap-based buffer overflow vulnerability exists in the Intan CLP parsing functionality of The...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
9.8
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.
- Record
CVE-2026-22891- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
EUVDEUVD-2026-9292
9.8
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.
- Record
EUVD-2026-9292- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-qvr5-p47q-wqmc
9.8
A heap-based buffer overflow vulnerability exists in the Intan CLP parsing functionality of The...
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.
- Record
GHSA-qvr5-p47q-wqmc- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
NVD
9.8
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.
- Record
CVE-2026-22891- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
OSV
9.8
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.
- Record
CVE-2026-22891- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-22891
9.8
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.
- Record
DEBIAN-CVE-2026-22891- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-22891
9.8
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.
- Record
UBUNTU-CVE-2026-22891- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUSN-8713-1 No score
biosig vulnerabilities
Mark Bereza and Lilith Wyatt discovered that BioSig incorrectly handled certain crafted input files. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-22891, CVE-2026-20777)
- Record
USN-8713-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
biosigDebian:12 |
All versions, plus listed versions 2.5.0-12.5.2-12.5.2-22.6.0-12.6.1-13.9.0-13.9.5-1 |
None known |
biosigDebian:13 |
All versions, plus listed versions 3.9.0-13.9.5-1 |
None known |
biosigDebian:14 |
before 3.9.5-1, plus listed versions 3.9.0-1 |
3.9.5-1 |
biosigUbuntu:Pro:22.04:LTS |
before 2.3.3-1ubuntu0.1~esm1, plus listed versions 2.1.2-42.1.2-4build12.1.2-4build22.3.3-12.3.3-1build12.3.3-1build2 |
2.3.3-1ubuntu0.1~esm1 |
biosigUbuntu:Pro:24.04:LTS |
before 2.6.0-1ubuntu1+esm1, plus listed versions 2.5.0-1build22.5.2-12.5.2-1build12.5.2-22.6.0-12.6.0-1build12.6.0-1ubuntu1 |
2.6.0-1ubuntu1+esm1 |
biosigUbuntu:25.10 |
All versions, plus listed versions 2.6.1-1build33.9.0-1 |
None known |
biosigUbuntu:Pro:26.04:LTS |
before 3.9.0-1ubuntu0.1~esm1, plus listed versions 3.9.0-13.9.0-1build13.9.0-1build23.9.0-1build3 |
3.9.0-1ubuntu0.1~esm1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-22891 is a critical vulnerability (CVSS 9.8) in Libbiosig Project Libbiosig, published March 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.68%, the 52nd percentile. Fixed in biosig 3.9.5-1.
References
talosintelligence.com/vulnerability_reports/TALOS-2026-2361
nvd.nist.gov/vuln/detail/CVE-2026-22891
github.com/advisories/GHSA-qvr5-p47q-wqmc
security-tracker.debian.org/tracker/CVE-2026-22891
ubuntu.com/security/CVE-2026-22891
ubuntu.com/security/notices/USN-8713-1
cve.org/CVERecord?id=CVE-2026-22891
ubuntu.com/security/CVE-2026-20777