A privilege escalation vulnerability in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker to leverage an RCE vulnerability escalating to root.
Severity
CVSS 3.0
8.8 high
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
46% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)