Flaw in RPC Endpoint Mapper Could Allow Denial of Service Attacks (331953) Originally posted: March 26, 2003 Summary Who should read this bulletin: Customers using Microsoft® Windows® NT 4.0, Windows 2000, or Windows XP Impact of vulnerability: Denial of Service Maximum Severity Rating: Important Recommendation: Customers should install the patch at the earliest opportunity Affected Software: Microsoft Windows NT 4 Microsoft Windows 2000 Microsoft Windows XP Click here for more info or to download.