*** UPDATE January 22 2010 ****
Download information for the patch.
This is an advance notification of one out-of-band security bulletin that Microsoft is intending to release on January 21, 2010. The bulletin will be for Internet Explorer to address limited attacks against customers of Internet Explorer 6, as well as fixes for vulnerabilities rated ‘Critical’ that are not currently under active attack.
See the Microsoft Security Bulletin at: http://www.microsoft.com/technet/security/bulletin/ms10-jan.mspx.