Technical Information

Brief overview of the risk:
This security update resolves two privately reported vulnerabilities in Microsoft Office Visio. The vulnerabilities could allow remote code execution if a user opens a specially crafted Visio file.
Detailed Information on the risk:

A remote code execution vulnerability exists in the way that Microsoft Office Visio validates attributes when handling specially crafted Visio files.
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 affected than users who operate with administrative user rights.

Further information on this exploit is available at : MS10-028