This indicates an attack attempt to exploit a Command Injection Vulnerability in Advantech iView.
This vulnerability is due to improper input validation of the backup_filename parameter while updating NetworkServlet database. A remote, unauthenticated attacker could exploit this vulnerability by sending a crafted request to the target server. Successfully exploiting this vulnerability could result in code execution in the context of SYSTEM.
Advantech iView prior to 5.7.04.6469
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.