Microsoft has planned a security update for this Friday to shield Internet Explorer users from a security bug that can let any unauthorized remote person takeover the Operating System.

Microsoft Blog posted :

“Then, on this Friday, Sept. 21, we will release a cumulative update for Internet Explorer through Windows Update and our other standard distribution channels.  We recommend that you install this update as soon as it is available. If you have automatic updates enabled on our PC, you won’t need to take any action – it will automatically be updated on your machine.  This will not only reinforce the issue that the Fix It addressed, but cover other issues as well.

Today’s Advance Notification Service (ANS) provides additional details about the update we are releasing on Friday – MS12-063. We are planning to release this bulletin as close to 10 a.m. PDT as possible. This cumulative update for Internet Explorer has an aggregate severity rating of Critical. It addresses the publicly disclosed issue described in Security Advisory 2757760 as well as four other Critical-class remote code execution issues.”