Severity Rating: Important
Revision Note: V1.1 (September 13, 2013): Revised bulletin to announce detection changes for the Microsoft Excel 2003 update (2810048), Microsoft Excel 2007 update (2760583), Microsoft Excel Viewer update (2760590), and Microsoft Office Compatibility Pack update (2760588). These are detection changes only. There were no changes to the update files. Customers who have successfully installed the updates do not need to take any action. Also updated the Known Issues entry in the Knowledge Base Article section from “Yes” to “None”.
Summary: This security update resolves three privately reported vulnerabilities in Microsoft Office. The most severe vulnerabilities could allow remote code execution if a user opens a specially crafted Office file with an affected version of Microsoft Excel or other affected Microsoft Office software. An attacker who successfully exploited the most severe vulnerabilities could gain the same user rights as the current 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.
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