thats been issued quite awhile ago. i havent hear any problems of it. some have had problems on the installation though.
i install all critical updates. usually i would check that its really from microsoft 1st.
I just did a network deploy at my office and its been two weeks with no issues. The only issue I did have was running it through window updates and having it stall up or not install correctly. I would recommend downloading the entire package, 314mb, and then installing it.