Looks like there’s a metasploit available. You can use that on your router to see if it’s susceptible. A quick google search indicates that this is only successful on older routers without input validation.
In general, follow good cyber security hygiene, and update the firmware on your router. If your router no longer is supported by the vendor (no more firmware updates for vulnerabilities found), then it’s old and you should upgrade.
That sums it up well.
I’m all for research, it’s good to have proven methods to say “hey, this is not healthy”. But this is a no brainer. I always assume that even a healthy option at a restaurant is worse (high fat, high salt, high added sugars) than anything I’d make myself.
Nobody is kidding themselves into thinking any of these places are healthy.