What’s Vulnerable › Vulnerabilities
CVE-2011-0656
- Severity: critical (CVSS 9.3 v2.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 29.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2011-04-13 · updated 2026-06-16
- Weakness: CWE-20
Description
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."
Affected products
- Microsoft Office: 2004, 2008, 2011
- Microsoft Office Compatibility Pack: 2007-sp2
- Microsoft Office Powerpoint Viewer: all versions
- Microsoft Open Xml File Format Converter: all versions
- Microsoft PowerPoint for Android: 2002-sp3, 2003-sp3, 2007-sp2, 2010
- Microsoft PowerPoint Viewer: 2007-sp2
- Microsoft Powerpoint Web App: all versions
References
- http://osvdb.org/71770
- http://www.securityfocus.com/archive/1/517482/100/0/threaded
- http://www.securityfocus.com/bid/47251
- http://www.securitytracker.com/id?1025340
- http://www.us-cert.gov/cas/techalerts/TA11-102A.html
- http://www.vupen.com/english/advisories/2011/0941
- http://www.zerodayinitiative.com/advisories/ZDI-11-125
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-022
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11761
- http://osvdb.org/71770
- http://www.securityfocus.com/archive/1/517482/100/0/threaded
- http://www.securityfocus.com/bid/47251
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