Description: A security issue has been identified in Microsoft XML Core Services (MSXML) that could allow an attacker to compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. Once you have installed this item, it cannot be removed.
Architecture: AMD64
Classification: Security Updates
Supported products: Windows Server 2003 , Windows Server 2003, Datacenter Edition , Windows XP x64 Edition , Windows Vista , Windows Server 2008 , Windows 7 , Windows Server 2008 R2 , Windows 8 , Windows Server 2012
Supported languages: Chinese (Traditional) , German , English , Spanish , French , Italian , Japanese , Korean , Chinese (Simplified)
MSRC Number: MS12-043
MSRC severity: Critical
KB article numbers: 2721691