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Vulnerability in Microsoft Video ActiveX Control Could Allow Remote Code Execution

Version: 1.0

Microsoft is investigating a privately reported vulnerability in Microsoft Video ActiveX Control. An attacker who successfully exploited this vulnerability could gain the same user rights as the local user.

When using Internet Explorer, code execution is remote and may not require any user intervention.

We are aware of attacks attempting to exploit the vulnerability.

Our investigation has shown that there are no by-design uses for this ActiveX Control in Internet Explorer which includes all of the Class Identifiers within the msvidctl.dll that hosts this ActiveX Control. For Windows XP and Windows Server 2003 customers, Microsoft is recommending removing support for this ActiveX Control within Internet Explorer using all the Class Identifiers listed in the Workaround section. Though unaffected by this vulnerability, Microsoft is recommending that Windows Vista and Windows Server 2008 customers remove support for this ActiveX Control within Internet Explorer using the same Class Identifiers as a defense-in-depth measure.

Customers may prevent the Microsoft Video ActiveX Control from running in Internet Explorer, either manually using the instructions in the Workaround section or automatically using the solution found in Microsoft Knowledge Base Article 972890. By preventing the Microsoft Video ActiveX Control from running in Internet Explorer, there is no impact to application compatibility.

• Microsoft Windows Server 2003 Service Pack 2, when used with:
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows Server 2003, Datacenter x64 Edition
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows XP Professional x64 Edition
  • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
  • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
• Microsoft Windows XP Service Pack 2, when used with:
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
• Microsoft Windows XP Service Pack 3, when used with:
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional