Heap-based buffer overflow in Biosig Project libbiosig
Priority MEDIUM 50CWE-122Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00675 52nd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| The Biosig Project | libbiosig | 3.9.2; Master Branch (db9a9a63) | — | No fix listed | CNA |
- libbiosig VendorThe Biosig Project Affected 3.9.2; Master Branch (db9a9a63) Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libbiosig_project:libbiosig:3.9.2:*:*:*:*:*:*:* | 3.9.2 | Vulnerable | The Biosig Project |
- cpe:2.3:a:libbiosig_project:libbiosig:3.9.2:*:*:*:*:*:*:* Versions 3.9.2 Vulnerable ·The Biosig Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-22891
- 2026-10-03 Alias added: GHSA-qvr5-p47q-wqmc
- 2026-10-29 EPSS moved to the 50th–90th percentile
References
More The Biosig Project Libbiosig vulnerabilities
- TI-2025-40573 Stack-based buffer overflow in Biosig Project libbiosig CVSS 3.1CRITICAL 9.8
- TI-2025-40572 Stack-based buffer overflow in Biosig Project libbiosig CVSS 3.1CRITICAL 9.8
- TI-2025-40571 Stack-based buffer overflow in Biosig Project libbiosig CVSS 3.1CRITICAL 9.8
- TI-2025-40570 Stack-based buffer overflow in Biosig Project libbiosig CVSS 3.1CRITICAL 9.8
- TI-2025-40569 Stack-based buffer overflow in Biosig Project libbiosig CVSS 3.1CRITICAL 9.8
- TI-2025-40568 Stack-based buffer overflow in Biosig Project libbiosig CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-22891 · CVE Program
- CVE-2026-22891 · NVD
- FIRST EPSS
- GHSA-qvr5-p47q-wqmc · GitHub Advisory Database · CC BY 4.0
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