This security update resolves a privately disclosed vulnerability in Windows common controls. The vulnerability could allow remote code execution if a user visits a website containing specially crafted content designed to exploit the vulnerability. In all cases, however, an attacker would have no way to force users to visit such a website. Instead, an attacker would have to convince users to visit the website, typically by getting them to click a link in an email message or Instant Messenger message that takes them to the attackers website. The malicious file could be sent as an email attachment as well, but the attacker would have to convince the user to open the attachment in order to exploit the vulnerability.
This security update is rated Critical for all supported Microsoft software that included the Windows common controls in their default installations. This includes all supported editions of Microsoft Office 2003, Microsoft Office 2007; Microsoft Office 2010 (except x64-based editions); Microsoft SQL Server 2000 Analysis Services, Microsoft SQL Server 2000 (except Itanium-based editions), Microsoft SQL Server 2005 (except Microsoft SQL Server 2005 Express Edition, but including Microsoft SQL Server 2005 Express Edition with Advanced Services), Microsoft SQL Server 2008, Microsoft SQL Server 2008 R2, Microsoft BizTalk Server 2002, Microsoft Commerce Server 2002, Microsoft Commerce Server 2007, Microsoft Commerce Server 2009, Microsoft Commerce Server 2009 R2, Microsoft Visual FoxPro 8.0, Microsoft Visual FoxPro 9.0, and Visual Basic 6.0 Runtime. For more information, see the subsection, Affected and Non-Affected Software, in this section.
The security update addresses the vulnerability by disabling the vulnerable version of the Windows common controls and replacing it with a new version that does not contain the vulnerability. For more information about the vulnerability, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.
Recommendation. Customers can configure automatic updating to check online for updates from Microsoft Update by using the Microsoft Update service. Customers who have automatic updating enabled and configured to check online for updates from Microsoft Update typically will not need to take any action because this security update will be downloaded and installed automatically. Customers who have not enabled automatic updating need to check for updates from Microsoft Update and install this update manually. For information about specific configuration options in automatic updating in supported editions of Windows XP and Windows Server 2003, see Microsoft Knowledge Base Article 294871. For information about automatic updating in supported editions of Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2, see Understanding Windows automatic updating.
For administrators and enterprise installations, or end users who want to install this security update manually, Microsoft recommends that customers apply the update immediately using update management software, or by checking for updates using the Microsoft Update service.
See also the section, Detection and Deployment Tools and Guidance, later in this bulletin.
Known Issues. Microsoft Knowledge Base Article 2664258 documents the currently known issues that customers may experience when installing this security update. The article also documents recommended solutions for these issues.