Today Microsoft released an update to address a vulnerability that affects all versions of the .NET Framework when used on the Windows Server operating system.

IT professionals are advised to get the update directly from the Microsoft Download Center. This allows us to get the update out as quickly as possible. The update will also be released through Windows Update and Windows Server Update services in the next few days.

Download the update.

If you use a computer at home you are not vulnerable unless you are running a Web server.

For more technical information, see Microsoft Security Bulletin Advance Notification for September 2010.