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CVE Number Vulnerability Product Severity Date
MS11-046 Vulnerability in Ancillary Function Driver Could Allow Elevation of Privilege (2503665) Windows XP Critical 15-06-2011

Technical Information

Brief overview of the risk:
This security update resolves a publicly disclosed vulnerability in the Microsoft Windows Ancillary Function Driver (AFD). The vulnerability could allow elevation of privilege if an attacker logs on to a user’s system and runs a specially crafted application.
Detailed Information on the risk:

An elevation of privilege vulnerability exists where the Ancillary Function Driver (afd.sys) improperly validates input passed from user mode to the kernel. The vulnerability could allow an attacker to run code with elevated privileges. A local attacker who successfully exploited this vulnerability could execute arbitrary code and take complete control of an affected system.


Further information on this exploit is available at : MS11-046

Affected Software

Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista Service Pack 1 and Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2*
Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2*
Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2
Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1*
Windows Server 2008 R2 for Itanium-based Systems and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1