You do know that ALL updates say that by default.
Most of them say "Unauthenticated remote attacker", but I find that hard to believe. Windows wasn't written by monkeys... right? Right?

The ones that scare me are the ones where the standard sticker is edited slightly... That must mean there really WAS a major flaw...
On the other hand, it could just be that the operating system is built so backwards that MS really do find flaws that "allow an unauthenticated remote attacker to compromise and take control of your system" in every component every few months... In that case, who wrote this !@#$%^&*()?