I have tried PoC from Google (https://github.com/fjserna/CVE-2015-7547) to test my host PC (first execute the server side PoC then execute client side PoC). It was vulnerable.
Now I want to check my router, but I'm not sure how to test it. Iif I modify /etc/resolv.conf to nameserver [my router's ip], then just execute client side PoC, it shows:
CVE-2015-7547-client: getaddrinfo: Name or service not known
Does it mean my router is not vulnerable?