kbrain

CVE-2011-0656

HIGH · CVSS 9.3EPSS 29.6%EU EUVD

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."

Key facts

CVSS score
9.3 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE)
CWE-20
EPSS score
29.6% (98th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2011-0674)
Published
April 13, 2011
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-0674 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

  • microsoft / office
  • microsoft / office
  • microsoft / office
  • microsoft / office compatibility pack
  • microsoft / office powerpoint viewer
  • microsoft / open xml file format converter
  • microsoft / powerpoint
  • microsoft / powerpoint
  • microsoft / powerpoint
  • microsoft / powerpoint
  • microsoft / powerpoint viewer
  • microsoft / powerpoint web app

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain