Re: Congratulations you work in IT.
I thought that most "consumers" got their routers preconfigured from their ISP, and only "experts" bought their own. I would expect the ISP or other tech support to be able to perform the fix remotely -- this is a remote access vulnerability.
The routers I'm familiar with are consumer products available anyplace that sells computers. (For example, Netis routers can be bought from Wal-Mart.). They are easy to set up. Amongst my circle of "non-IT expert" friends, a high percentage--well over half I'd estimate--set up their own wireless routers for home use. (That doesn't imply that any of us know squat about backdoor security. Therein lies the rub.)
On a different point, I'm not sure that Netis is alone in having this vulnerability.