Funnily enough I was just about to perform my monthly scan on the internal network and this popped up in one of my many security briefing newsfeeds. Now it seems my local mainstream online read has picked this up as well.
This is very real and affects the very protocol of which your WiFi router is built on. For more info read the article below, but more importantly, find out the brand of your WiFi router and visit the manufacturer’s Website and see if there is any update for it.
In short, it does allow someone with some knowledge and the right tools to sniff through your WiFi network traffic and extract information you might post on forms such as login credentials and credit card info to name just a couple.