Severity Rating: Important
Revision Note: V2.0 (May 19, 2015): Bulletin revised to announce the release of the Microsoft Office for Mac 14.5.1 update. The release addresses a potential issue with Microsoft Outlook for Mac when customers install the Microsoft Office for Mac 14.5.0 update. Customers who have not already installed the 14.5.0 update should install the 14.5.1 update to be fully protected from this vulnerability. To avoid the possibility of future issues with Microsoft Outlook for Mac, Microsoft recommends that customers running Office for Mac software who have already successfully installed the 14.5.0 update also apply the 14.5.1 update even though they are already protected from this vulnerability. Customers running other Microsoft Office software do not need to take any action. See Microsoft Knowledge Base Article 3048688 for more information.
Summary: This security update resolves vulnerabilities in Microsoft Office. The most severe of the vulnerabilities could allow remote code execution if a user opens a specially crafted Microsoft Office file. An attacker who successfully exploited the vulnerabilities could run arbitrary code in the context of the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

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