Severity Rating: Important
Revision Note: V1.1 (February 22, 2012): Added a link to Microsoft Knowledge Base Article 2644615 under Known Issues in the Executive Summary.
Summary: This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow an attacker to bypass the SafeSEH security feature in a software application. An attacker could then use other vulnerabilities to leverage the structured exception handler to run arbitrary code. Only software applications that were compiled using Microsoft Visual C++ .NET 2003 can be used to exploit this vulnerability.