CVE-2006-3864: Microsoft Office

High severity, CVSS 9.3. EPSS: 33.8% chance of exploitation in the next 30 days.

Unspecified vulnerability in mso.dll in Microsoft Office 2000, XP, and 2003, and Microsoft PowerPoint 2000, XP, and 2003, allows remote user-assisted attackers to execute arbitrary code via a malformed record in a (1) .DOC, (2) .PPT, or (3) .XLS file that triggers memory corruption, related to an "array boundary condition" (possibly an array index overflow), a different vulnerability than CVE-2006-3434, CVE-2006-3650, and CVE-2006-3868.

Affected products

• Microsoft Office: version 2000 only; version 2003 only; version 2004 only; version v.x only; version xp only
• Microsoft Project: version 2000 only; version 2002 only
• Microsoft Visio: version 2002 only

Published 2006-10-10. Last modified 2026-06-16.