This indicates an attack attempt to exploit a Code Execution vulnerability in Smart Software CoDeSys Gateway Server.
The vulnerability is due to insufficient validation in the application when handling certain requests. By sending a crafted request to a targeted server, a remote attacker can exploit this to execute arbitrary code within the context of the server.
Smart Software Solutions CoDeSys prior to 220.127.116.11
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.