CVE-2009-1534: Microsoft Isa Server

High severity, CVSS 9.3. EPSS: 51.6% chance of exploitation in the next 30 days.

Buffer overflow in the Office Web Components ActiveX Control in Microsoft Office XP SP3, Office 2000 Web Components SP3, Office XP Web Components SP3, BizTalk Server 2002, and Visual Studio .NET 2003 SP1 allows remote attackers to execute arbitrary code via crafted property values, aka "Office Web Components Buffer Overflow Vulnerability."

Affected products

• Microsoft Isa Server: version 2004 only; version 2006 only
• Microsoft Office: affected versions not specified; version 2003 only; version xp only
• Microsoft Office Web Components: version 2000 only; version 2003 only; version xp only

Published 2009-08-12. Last modified 2026-06-16.