According to US-CERT (part of the Department of Homeland Security), Netgear R6200, R6250, R6400, R6700, R6900, R7000, R7100LG, R7300, R7900, R8000, D6220, and D6400 routers, and possibly other models, are vulnerable to arbitrary command injection. If you use one of the vulnerable Netgear routers, we recommend that you apply an update provided by Netgear, or discontinue use and replace the vulnerable device.
Review US-CERT’s Vulnerability Note VU#582384 for more details. Refer to Netgear’s Security Advisory for VU 582384, PSV-2016-0245 for more details, instructions, and links to available firmware updates to install on certain vulnerable models.
Contact Netgear Support or a local computer shop for assistance with installing Netgear router firmware updates. Be sure to mention the Netgear Security Advisory for VU 582384, PSV-2016-0245.