CVE-2025-24915: Tenable Nessus Agent

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

When installing Nessus Agent to a non-default location on a Windows host, Nessus Agent versions prior to 10.8.3 did not enforce secure permissions for sub-directories.  This could allow for local privilege escalation if users had not secured the directories in the non-default installation location.

Affected products

• Tenable Nessus Agent: before 10.8.3 (fixed in 10.8.3)

Published 2025-03-21. Last modified 2026-06-17.