Technical Information

Brief overview of the risk:
The vulnerability could allow remote code execution on a client system if a user views a specially crafted webpage using a web browser that can run XAML Browser Applications (XBAPs).
Detailed Information on the risk:

A remote code execution vulnerability exists in the way that Microsoft .NET Framework validates parameters when passing data to a function. An attacker who successfully exploited this vulnerability could take complete control of an affected system. 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 : MS12-025