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TI-2026-56290 Aliases CVE-2026-81625GHSA-fgmh-w4xc-3q4h

Stack buffer overflow in Greenbone OS and openvas-scanner

Priority MEDIUM 40CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

A remote attacker with user privileges may use a malicious or compromised NASL vulnerability test (VT) on the affected products to trigger a stack buffer overflow and gain full access on the compromised system.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00568 47th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GreenboneGreenbone OS5.0 – 25.0.5—No fix listedCNA
Greenboneopenvas-scanner3.0 – 23.49.3—No fix listedCNA
  • Greenbone OS VendorGreenbone Affected 5.0 – 25.0.5 Fixed in — No fix listed CNA
  • openvas-scanner VendorGreenbone Affected 3.0 – 23.49.3 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-81625
  2. 2026-10-03 Alias added: GHSA-fgmh-w4xc-3q4h

References

Other 1

  • TI-2018-15243 Greenbone Security Assistant (GSA) before 7.0.3 and Greenbone OS (GOS) before 5.0.0 allow Host Header Injection. CVSS 3.1CRITICAL 9.8
  • TI-2011-00567 Cross-site request forgery (CSRF) vulnerability in Greenbone Security Assistant (GSA)… CVSS 2.0MEDIUM 6.8
  • TI-2016-01763 Cross-site scripting (XSS) vulnerability in the charts module in Greenbone Security… CVSS 3.0MEDIUM 6.1
  • TI-2019-15187 Greenbone Security Assistant (GSA) before 8.0.2 and Greenbone OS (GOS) before 5.0.10… CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences