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This security update resolves a privately reported vulnerability that could allow remote code execution if a user opens a specially crafted Word file. 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 impacted than users who operate with administrative user rights.
This security update is rated Important for all supported editions of Microsoft Office Word 2002 and Microsoft Office Word 2003, Microsoft Office 2004 for Mac, Microsoft Office 2008 for Mac, Open XML File Format Converter for Mac, and all supported versions of Microsoft Office Word Viewer.
The security update addresses the vulnerability by modifying the way that Microsoft Office Word opens specially crafted Word files.
Recommendation. Microsoft recommends that customers apply the update at the earliest opportunity.
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