Microsoft PowerPoint 2002 SP3 2003 SP3 2007 SP2 and 2010; Office 2004 2008 and 2011 for Mac; Open XML File Format Converter for Mac; Office Compatibility Pack for Word Excel and PowerPoint 2007 File Formats SP2; PowerPoint Viewer; PowerPoint Viewer 2007 SP2; and PowerPoint Web App do not properly validate PersistDirectoryEntry records in PowerPoint documents which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a Slide with a malformed record which triggers an exception and later use of an unspecified method aka \Persist Directory RCE Vulnerability.\