Technical Information

Brief overview of the risk:
The vulnerability could allow remote code execution if an attacker sends a continuous flow of specially crafted UDP packets to a closed port on a target system.
Detailed Information on the risk:

A remote code execution vulnerability exists in the Windows TCP/IP stack due to the processing of a continuous flow of specially crafted UDP packets. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Further information on this exploit is available at : MS11-083