Technical Information

Brief overview of the risk:
This security update resolves a privately reported vulnerability in the Web Services on Devices Application Programming Interface (WSDAPI) on the Windows operating system. The vulnerability could allow remote code execution if an affected Windows system receives a specially crafted packet.
Detailed Information on the risk:

A remote code execution vulnerability exists in the Web Services on Devices API (WSDAPI) on Windows systems. The vulnerability is due to the service not properly handling a WSDAPI message with a specially crafted header. An attacker who successfully exploited this vulnerability could take complete control of an affected system.

Further information on this exploit is available at : MS09-063