Cisco’s DPC3825 and DPC3925 routers have bug in web server. Remote code execution bug could allow an unauthenticated, remote attacker to exploit a buffer overflow and cause arbitrary code execution. A fix is available, but it’s not clear if you can turn off the web-facing interface. Free Sophos UTM Home Edition offers full-blown anti-virus software for Windows on up to 12 PCs for $0.99 per PC or laptop. It includes web and email filtering, network intrusion detection and VPN support.”]