CVE-2009-1539: Microsoft DirectX

High severity, CVSS 9.3. EPSS: 25.8% chance of exploitation in the next 30 days.

The QuickTime Movie Parser Filter in quartz.dll in DirectShow in Microsoft DirectX 7.0 through 9.0c on Windows 2000 SP4, Windows XP SP2 and SP3, and Windows Server 2003 SP2 does not properly validate unspecified size fields in QuickTime media files, which allows remote attackers to execute arbitrary code via a crafted file, aka "DirectX Size Validation Vulnerability."

Affected products

• Microsoft DirectX: version 7.0 only; version 8.1 only; version 9.0 only
• Microsoft Windows 2000: affected versions not specified
• Microsoft Windows Server 2003: any version
• Microsoft Windows XP: affected versions not specified

Published 2009-07-15. Last modified 2026-06-16.