CVE-2005-1212: Microsoft Windows 2000

High severity, CVSS 7.5. EPSS: 24.9% chance of exploitation in the next 30 days.

Buffer overflow in Microsoft Step-by-Step Interactive Training (orun32.exe) allows remote attackers to execute arbitrary code via a bookmark link file (.cbo, cbl, or .cbm extension) with a long User field.

Affected products

• Microsoft Windows 2000: any version
• Microsoft Windows 2000 Terminal Services: any version
• Microsoft Windows 2003 Server: version 64-bit only; version datacenter_64-bit only; version enterprise only; version enterprise_64-bit only; version r2 only; version standard only; …
• Microsoft Windows 98: any version
• Microsoft Windows 98se: any version
• Microsoft Windows Me: any version
• Microsoft Windows XP: any version

Published 2005-06-14. Last modified 2026-06-16.