Home routers are particularly vulnerable because they’re exposed directly to the Internet.Every other device you own is shielded behind the router, and isn’t publicly addressable.(Update 12/20/16 at am PT: Netgear told Tom's Hardware in an email that it plans to release "final firmware for all of the affected routers" today.
In the mean time, Netgear has issue beta firmware for the following five models — R6250, R6400, R6700, R7000 and R8000 — which “has not been fully tested and might not work for all users”.As the company discovers more products affected by this vulnerability, at least, it's also swiftly releasing firmware updates to improve their security."Acew0rm" on Twitter discovered the security problem in August.The initial alert said that only Netgear R6400 and R7000 models were vulnerable, but users reported on Reddit that Netgear R8000 routers were also affected.Netgear acknowledged the issue over the weekend, and today expanded the list and issued firmware updates.
Quite a few routers are actually built on top of Linux, and that means security vulnerabilities in the Linux kernel or related software — like the Shellshock bug in the Bash shell — could affect your router.