CVE-2020-28904: Nagios Fusion

Critical severity, CVSS 9.8. EPSS: 4.7% chance of exploitation in the next 30 days.

Execution with Unnecessary Privileges in Nagios Fusion 4.1.8 and earlier allows for Privilege Escalation as nagios via installation of a malicious component containing PHP code.

Affected products

• Nagios Fusion: up to and including 4.1.8

Published 2021-05-24. Last modified 2026-06-17.