Technical Information

Brief overview of the risk:
This security update resolves a privately reported vulnerability in the Microsoft implementation of Vector Markup Language (VML).
Detailed Information on the risk:

A remote code execution vulnerability exists in the way that Internet Explorer accesses an object that has not been correctly initialized or has been deleted. An attacker could exploit the vulnerability by constructing a specially crafted Web page. When a user views the Web page, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user.

Further information on this exploit is available at : MS11-052