Yep! The patch is there and easy to get to. If you are running XP (which it applies to) the patch is now on the Windows Update page as a "Critical." Get it along with the other 3 criticals.
This fault is the result of trying to add more "gee whiz" features in a short time. The more of that you add, the more chances of a glitch. The intent here is to provide for having the great god Windows be able to run and manage your home security system.