This indicates an attack attempt to exploit a Remote Code Execution vulnerability in Flexense DiskBoss.
The vulnerability is due to insufficient sanitizing of user supplied inputs in the application when handling a malicious request. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application, via a crafted request.
Flexense DiskBoss 8.8.16 and earlier
System Compromise: Remote attackers can gain control of vulnerable systems.
Currently, we are unaware of any vendor supplied patch for this issue.