Microsoft Patch MS12-024 might break ICA and RDP connections of Windows Server 2003

The Microsoft security patch MS12-024 released this month to address vulnerability in Windows remote code execution might cause Citrix ICA and Microsoft RDP connections of Windows Server 2003 to fail.  Information about the security patch can be found at Microsoft Security Bulletin MS12-024.

Citrix has put up an article Microsoft Windows 2003 Known Issue - ICA and RDP Connections Fail After Installing Microsoft Patch MS12-024 to address this issue.

If you are encountering issue with ICA or RDP connections after applying MS12-024, you will need to apply hotfix 958476 to fix it.

I have tested my Citrix Servers after applying MS12-024 but did not encounter the issue.  My Citrix Servers are having the following configuration.

• Windows Server 2003 R2 with SP2 x86
• Citrix XenApp 5.0 with FR3

Good luck with your patching.

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