Technical Information

Brief overview of the risk:
This security update resolves one publicly disclosed vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if a user opened a specially crafted fax cover page file (.cov) using the Windows Fax Cover Page Editor.
Detailed Information on the risk:

A remote code execution vulnerability exists in the way that the Windows Fax Cover Page Editor improperly parses specially crafted fax cover pages. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. 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 : MS11-024