Attention: Don't Install SharePoint Server 2010 October Cumulative Update, Microsoft Warned!

Microsoft has discovered a critical issue in the recently released October Cumulative Updates for SharePoint Server 2010 and Project Server 2010, and we've removed the files from download availability.If you've already downloaded the CU, do not install it. Or, if you already have installed the CU, please read the following embed for troubleshooting:[Source]

Microsoft has discovered a critical issue in the recently released October Cumulative Updates for SharePoint Server 2010 and Project Server 2010, and we've removed the files from download availability.

If you've already downloaded the CU, do not install it. Or, if you already have installed the CU, please read the following embed for troubleshooting:

[Source]