CVE-2021-37343: Nagios XI

High severity, CVSS 8.8. EPSS: 23.8% chance of exploitation in the next 30 days.

A path traversal vulnerability exists in Nagios XI below version 5.8.5 AutoDiscovery component and could lead to post authenticated RCE under security context of the user running Nagios.

Affected products

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

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