CVE-2018-15708: Nagios XI

Critical severity, CVSS 9.8. EPSS: 89.4% chance of exploitation in the next 30 days.

Snoopy 1.0 in Nagios XI 5.5.6 allows remote unauthenticated 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.