This indicates an attack attempt to exploit a Code Injection vulnerability in KDE Frameworks LibreNMS.
The vulnerability is due to an error in the application when handling a craft request. An authenticated remote attacker may be able exploit this to execute arbitrary code within the context of the application.
LibreNMS version 1.47 or prior
System Compromise: Remote attackers can gain control of vulnerable systems.
Currently we are unaware of any vendor supplied patch for this issue.