CVE-2009-1133: Microsoft Windows 2000

High severity, CVSS 9.3. EPSS: 30.5% chance of exploitation in the next 30 days.

Heap-based buffer overflow in Microsoft Remote Desktop Connection (formerly Terminal Services Client) running RDP 5.0 through 6.1 on Windows, and Remote Desktop Connection Client for Mac 2.0, allows remote attackers to execute arbitrary code via unspecified parameters, aka "Remote Desktop Connection Heap Overflow Vulnerability."

Affected products

• Microsoft Windows 2000: affected versions not specified
• Microsoft Windows Server: version 2003 only
• Microsoft Windows Server 2003: any version
• Microsoft Windows Server 2008: any version; affected versions not specified
• Microsoft Windows Vista: any version; affected versions not specified
• Microsoft Windows XP: any version; affected versions not specified

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