Technical Information

Brief overview of the risk:
The vulnerability could allow remote code execution if a user opens a specially crafted Microsoft Digital Video Recording (.dvr-ms) file. In all cases, a user cannot be forced to open the file; for an attack to be successful, a user must be convinced to do so.
Detailed Information on the risk:

A remote code execution vulnerability exists in the way that Windows Media Player and Windows Media Center handle .dvr-ms files. This vulnerability could allow an attacker to execute arbitrary code if the attacker convinces a user to open a specially crafted .dvr-ms file. 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 : MS11-092