Customers who have not enabled automatic updating need to check for updates from Microsoft Update and install this update manually. Customers who have automatic updating enabled and configured to check online for updates from Microsoft Update typically will not need to take any action because this security update will be downloaded and installed automatically. Recommendation. Customers can configure automatic updating to check online for updates from Microsoft Update by using the Microsoft Update service. For more information about the vulnerabilities, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information. The security update addresses the vulnerabilities by correcting the way that Microsoft Visio Viewer validates data when parsing specially crafted Visio files. For more information, see the subsection, Affected and Non-Affected Software, in this section. This security update is rated Important for all supported editions of Microsoft Visio Viewer 2010. 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.
An attacker who successfully exploited these vulnerabilities could gain the same user rights as the logged-on user. The vulnerabilities could allow remote code execution if a user opens a specially crafted Visio file. This security update resolves five privately reported vulnerabilities in Microsoft Office. Version: 1.0 General Information Executive Summary Security Bulletin Microsoft Security Bulletin MS12-015 - Important Vulnerabilities in Microsoft Visio Viewer 2010 Could Allow Remote Code Execution (2663510)