{"cve":"CVE-2011-0656","nvd":{"published":"2011-04-13T18:55:01.360","modified":"2026-06-16T23:27:49.483","status":"Modified","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.\"","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"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"],"products":["microsoft:office","microsoft:office_compatibility_pack","microsoft:office_powerpoint_viewer","microsoft:open_xml_file_format_converter","microsoft:powerpoint","microsoft:powerpoint_viewer","microsoft:powerpoint_web_app"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-0656","score":0.29604,"percentile":0.9819,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}