As part of its normal update cycles, Microsoft plans to launch the first security bulletin of the year on next Tuesday, 13 January 2009. As per the advance notification bulletin report, this month, Microsoft plans to release only a security patch to its operating systems. It was 8 updates on December 2008.

Although, Microsoft did not offer many details by this time, this might be a critical vulnerability that could be exploited by executing the arbitrary code. The affected versions of Windows are Windows 2000, XP, Vista and Windows server 2008.

Moreover, Microsoft will release an updated version of its Malicious Software Removal Tool for download. Both the security updates and Malicious Software Removal tool are available from Microsoft download center.