said by Mangix:
Most of the issue surrounding this report deals with the fact that the firmware on some routers opens the UPnP port on the WAN side and as such makes in accessible by anyone.
While it's true that this is a rather big issue, the fact is that 99.9% of the routers being sold today do not do this. They only expose UPnP on the LAN side, which is where it should be.
Good point, and exactly why the only test I was interested in was the external test.