Microsoft released a Out-Of-Band Bulletin to address Security Advisory 2659883. The security update has a severity rating of Critical and resolves a publicly disclosed remote unauthenticated Denial of Service issue in ASP.NET versions 1.1 and above on all supported versions of .NET Framework.

Patch Assessment team at Desktop
Central are testing all the patches pertaining to these bulletins and will
update their central patch database at the earliest.

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