Technical Information

Brief overview of the risk:
This security update resolves a privately reported vulnerability in Microsoft XML Core Services. The vulnerability could allow remote code execution if a user viewed a specially crafted Web page using Internet Explorer.
Detailed Information on the risk:

A remote code execution vulnerability exists in the way that Microsoft XML Core Services handles HTTP responses. The vulnerability could allow remote code execution if a user browses a Web site that contains specially crafted content or opens specially crafted HTML e-mail. 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. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Further information on this exploit is available at : MS10-051