CVE-2018-15709: Nagios XI

High severity, CVSS 8.8. EPSS: 21% chance of exploitation in the next 30 days.

Nagios XI 5.5.6 allows remote authenticated attackers to execute arbitrary commands via a crafted HTTP request.

Affected products

• Nagios Nagios XI: version 5.5.6 only

Published 2018-11-14. Last modified 2026-06-17.