Technical Information

Brief overview of the risk:
This security update resolves a publicly disclosed vulnerability in Microsoft XML Core Services. The vulnerability could allow remote code execution if a user views a specially crafted webpage using Internet Explorer.
Detailed Information on the risk:

A remote code execution vulnerability exists in the way that Microsoft XML Core Services handles objects in memory. The vulnerability could allow remote code execution if a user views a website that contains specially crafted content. An attacker who successfully exploited this vulnerability could take complete control of an affected system.

Further information on this exploit is available at : MS12-043