Medium (6.3) in nagios nagios. EPSS 0.8% chance of exploitation in the next 30 days.
Nagios Core before 4.3.3 creates a nagios.lock PID file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for nagios.lock modification before a root script executes a "kill `cat /pathname/nagios.lock`" command.
Severity
CVSS 3.0
6.3 medium
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
EPSS
0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)