Whether it was intentional backdoor or not, NSA must've had a field day with it by now.
The scary thing is the bar is so low; even I could turn this into a nice weaponized thing to go after the long tail of people who don't upgrade, for the next months. The "diode" etc. infrastructure NSA built isn't that different from botnet C&C or the kind of relays people have when hacking.
I wish more people understood this. Not to let NSA off the hook (what they are doing is awful), but the threat posed by the NSA is a higher-level down the road/slippery slope threat.
There are other more immediate and real dangers out there that are actively trying to steal whatever they can find.