CVE-2021-20077: Tenable Nessus Agent

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

Nessus Agent versions 7.2.0 through 8.2.2 were found to inadvertently capture the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. This could allow a privileged attacker to obtain the token.

Affected products

• Tenable Nessus Agent: from 7.2.0, before 8.2.3 (fixed in 8.2.3)

Published 2021-03-19. Last modified 2026-06-17.