Please I need help to remediate the mDNS Detection (Remote Network) vulnerability uncovered on six of our BrightSign media players. I know that each of the units has an SD card slot and a USB port.
I read somewhere here that we need to perform the steps below to remediate the vulnerability but I don't have a clue on how to actually go about it.

Kindly help me by detailing steps to follow to remediate this vulnerability as if you're teaching a 10years old.
Thanks