CVE-2019-9166: Nagios XI

High severity, CVSS 7.8. EPSS: 1.2% chance of exploitation in the next 30 days.

Privilege escalation in Nagios XI before 5.5.11 allows local attackers to elevate privileges to root via write access to config.inc.php and import_xiconfig.php.

Affected products

• Nagios Nagios XI: before 5.5.11 (fixed in 5.5.11)

Published 2019-03-28. Last modified 2026-06-17.