这表明攻击企图利用 Microsoft .NET Framework 和 Silverlight Framework 中的远程代码执行漏洞。该漏洞是由于对公共类的无限制访问。结果，远程攻击者可以利用它在应用程序的上下文中执行任意代码

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 2 Windows Vista x64 Edition Service Pack 2 Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2008 for x64-based Systems Service Pack 2 Windows Server 2008 for Itanium-based Systems Service Pack 2 Windows 7 for 32-bit Systems Windows 7 for 32-bit Systems Service Pack 1 Windows 7 for x64-based Systems Windows 7 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for x64-based Systems Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for Itanium-based Systems Windows Server 2008 R2 for Itanium-based Systems Service Pack 1

系统被入侵：远程攻击者可以控制易受攻击的系统。

应用供应商提供的最新升级或补丁。 http://technet.microsoft.com/en-us/security/bulletin/MS12-016