In a security announcement on Thursday, Microsoft warned users of an up and coming security patch rollout. This Tuesday, Microsoft will be releasing a total of seven patches they have been developing the past few months to address various security vulnerabilities including two given Microsoft's highest security rating. The flaws includes issues in WMP, Office and Windows, some of which can result in total system compromise.
The exact set of fixes is not made clear, but given the time spent in development of fixes before rollout, it's unlikely that any particularly recent flaws have been addressed. The Malicious Software Removal Tool which comes down along with other updates in Windows Updates is also getting an upgrade to let it remove instances of the Kama Sutra worm. Just a little late on the gun there, but at least something is being done.