CVE-2021-20117: Tenable Nessus Agent

Medium severity, CVSS 6.7. EPSS: 0.3% chance of exploitation in the next 30 days.

Nessus Agent 8.3.0 and earlier was found to contain a local privilege escalation vulnerability which could allow an authenticated, local administrator to run specific executables on the Nessus Agent host. This is different than CVE-2021-20118.

Affected products

• Tenable Nessus Agent: up to and including 8.3.0

Published 2021-09-09. Last modified 2026-06-17.