Netgear releases patched firmware to fix vulnerability.........

So has the fix been officially made available to the general public yet?  If so, how does one know if they need the fix for their particular NetGear box?  Does it affect the boxes we were issued, or in my case, had replaced by NetGear in general, or just specific ones?  How do we tell if we have one of them?  Sorry for all the questions, still learning.