If an attacker can control the port, which in itself is a very sensitive value, they can inject arbitrary OS commands due to the usage of the exec function in a third-party module kill-port < 1.3.2.
CVSS 3.0HIGH 8.1·Network·No auth·No interaction·EPSS 0.01887·Published 2019-03-17·Fixed in 1.3.2CWE-77