Microsoft has issued a Security Bulletin Advance Notification indicating that its May release cycle will contain four bulletins, three of which will have a severity rating of Critical. The notification states that these Critical bulletins are for Microsoft Windows and Office. The notification also states that there will be one Important bulletin for Windows Live OneCare, Antigen, Defender, and Forefront Security. Release of these bulletins is scheduled for Tuesday, May 12.

US-CERT will provide additional information as it becomes available.

Read more: US-CERT Current Activity