Cisco Systems released patches for its small business RV Series routers and firewalls to address vulnerabilities that could allow attackers to execute arbitrary commands and overwrite files on the vulnerable devices. The affected products are Cisco RV120W Wireless-N VPN Firewall, Cisco RV180 VPN Router, Cisco RV180W Wireless-N Multifunction VPN Router, and Cisco RV220W Wireless Network Security Firewall.