This bulletin summary lists security bulletins released for December 2008.

With the release of the bulletins for December 2008, this bulletin summary replaces the bulletin advance notification originally issued December 4, 2008. For more information about the bulletin advance notification service, see Microsoft Security Bulletin Advance Notification.
For information about how to receive automatic notifications whenever Microsoft security bulletins are issued, visit Microsoft Technical Security Notifications.

Microsoft is hosting a webcast to address customer questions on these bulletins on December 10, 2008, at 11:00 AM Pacific Time (US & Canada). Register now for the December Security Bulletin Webcast. After this date, this webcast is available on-demand. For more information, see Microsoft Security Bulletin Summaries and Webcasts.

Microsoft also provides information to help customers prioritize monthly security updates with any non-security, high-priority updates that are being released on the same day as the monthly security updates. Please see the section, Other Information.