Hole in SCADA talked about at EWeek
Contrary to what they say this is not the "first hole found" in SCADA software though it does seem to be widely disseminated at this point. Probably falls into the category of first fully disclosed.
It is similar to a lot of the OPC crap floating around in the rest of the IT world.
To be honest with a lot of the current SCADA Ethernet equipment you don't need a hole. The front door is open.
Definitely a matter of concern if for no other reason than the spotlight is a bit brighter now. Decent article.
Dale has more on it.