CVE-2021-37349: Nagios XI

High severity, CVSS 7.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Nagios XI before version 5.8.5 is vulnerable to local privilege escalation because cleaner.php does not sanitise input read from the database.

Affected products

• Nagios Nagios XI: before 5.8.5 (fixed in 5.8.5)

Published 2021-08-13. Last modified 2026-06-17.