This is an advance notification of an out-of-band security bulletin that Microsoft is intending to release on October 23, 2008.
This bulletin advance notification will be replaced with the revised October bulletin summary on October 23, 2008. The revised bulletin summary will include the out-of-band security bulletin as well as the security bulletins already released on October 14, 2008.
For more information about the bulletin advance notification service, see Microsoft Security Bulletin Advance Notification.
To receive automatic notifications whenever Microsoft Security Bulletins are issued, subscribe to Microsoft Technical Security Notifications.
Microsoft is hosting a webcast to address customer questions on this out-of-band security bulletin on October 23, 2008, at 1:00 PM Pacific Time (US & Canada). Register now for the Out-of-Band 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.
More details are available here: