Today Microsoft released 13 bulletins addressing 26 vulnerabilities of which 11 affect Windows and 2 affect older versions of Microsoft Office.
MSRC: February 2010 Security Bulletin Release
TechNet: Microsoft Security Bulletin Summary for February 2010
Security Research & Defense: Assessing the risk of the February Security Bulletins
The February edition of the monthly security bulletin webcast will be held on Wednesday, Feb 10 at 11:00 a.m. PST (UTC -8)
Registration: http://msevents.microsoft.com/CUI/EventDetail.aspx?EventID=1032427679
Update
It has been reported that MS10-015 may cause Windows XP to blue screen for some users.
http://www.krebsonsecurity.com/2010/02/new-patches-cause-bsod-for-some-windows-xp-users/
http://social.answers.microsoft.com/Forums/en-US/vistawu/thread/73cea559-ebbd-4274-96bc-e292b69f2fd1
Update
MS10-015 Issues
