Checkmk before 1.6.0p17 allows local users to obtain SYSTEM privileges via a Trojan horse shell script in the %PROGRAMDATA%\checkmk\agent\local directory.
https://compass-security.com/fileadmin/Research/Advisories/2020-05_CSNC-2020-005_Checkmk_Local_Privilege_Escalation.txt
Source: Mitre, NVD
Published: 2021-02-19
Updated: 2026-06-17
Base Score: 7.2
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
Severity: High
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.00042