CVE-2023-5622: Tenable Nessus Network Monitor

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Under certain conditions, Nessus Network Monitor could allow a low privileged user to escalate privileges to NT AUTHORITY\SYSTEM on Windows hosts by replacing a specially crafted file.

Affected products

• Tenable Nessus Network Monitor: before 6.3.0 (fixed in 6.3.0)

Published 2023-10-26. Last modified 2026-06-17.