Vulnerability · Published Aug 27, 2026 · Assigned by CERTVDE
CVE-2026-81625Stack buffer overflow in Greenbone OS and openvas-scanner
High 8.8
In plain English
A high-severity out-of-bounds write in Greenbone OS from Greenbone. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 52.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Greenbone | Greenbone OS | 5.0 – through 25.0.5 |
| greenbone | openvas-scanner | 3.0 – through 23.49.3 |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H