Today we provided advance notification to customers that we will release an out-of-band security update to address the vulnerability discussed in Security Advisory 2416728. The update is scheduled for release tomorrow, Tuesday, September 28, 2010 at approximately 10:00 AM PDT. The bulletin has a severity rating of Important and addresses a publicly disclosed vulnerability in ASP.NET that affects all versions of the .NET Framework when used on Windows Server operating systems. Windows desktop systems are listed as affected, but consumers are not vulnerable unless they are running a Web server from their computer.
Based on our comprehensive monitoring of the threat landscape, we have determined an out-of-band release is needed to protect customers as we have seen limited attacks and continued attempts to bypass current defenses and workarounds.