Microsoft appears to have determined that some of their patches released in October to fix issues were worse than the issues to begin with.
All KB articles for the patch show a missing page.
https://support.microsoft.com/en-us/help/4052235
https://support.microsoft.com/en-us/help/4052234
https://support.microsoft.com/en-us/help/4052233
Those using 3rd party patch management tools, or who may have already released the patches might need to disable the patch from being released, or monitor their systems until an updated fix is published.
