CVE-2021-20100: Tenable Nessus

Medium severity, CVSS 6.7. EPSS: 0.5% chance of exploitation in the next 30 days.

Nessus Agent 8.2.4 and earlier for Windows were found to contain multiple local privilege escalation vulnerabilities which could allow an authenticated, local administrator to run specific Windows executables as the Nessus host. This is different than CVE-2021-20099.

Affected products

• Tenable Nessus: before 8.2.5 (fixed in 8.2.5)

Published 2021-06-28. Last modified 2026-06-17.