Improper neutralization of livestatus command delimiters in a specific endpoint within RestAPI of Checkmk prior to 2.2.0p39, 2.3.0p25, and 2.1.0p51 (EOL) allows arbitrary livestatus command execution. Exploitation requires the attacker to have a contact group assigned to their user account and for an event to originate from a host with the same contact group or from an event generated with an unknown host.
2025-04-10T08:15:14.663
2025-08-21T21:56:10.000
Analyzed
CVSSv3.1: 8.8 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | checkmk | checkmk | < 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.1.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.2.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |
| Application | checkmk | checkmk | 2.3.0 | Yes |