This indicates an attack attempt to exploit a Command Injection vulnerability in Cisco Cisco RV110W Wireless-N VPN Firewall, Cisco RV130W Wireless-N Multifunction VPN Router, and Cisco RV215W Wireless-N VPN Router.
The vulnerability is due to insufficient sanitizing of user supplied inputs in the application. A remote attacker may be able to exploit this to execute arbitrary commands within the context of the application, via a crafted HTTP request.
RV215W Wireless-N VPN Router versions prior to 18.104.22.168 are affected
RV130W Wireless-N Multifunction VPN Router versions prior to 22.214.171.124
RV110W Wireless-N VPN Firewall versions prior to 126.96.36.199
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.