Is there any problem in Installing Sharepoint foundation patches and CU inside sharepoint server 2013 professional

I have live & staging SharePoint servers 2013. and i have installed the November 2014 CU on both of them, then i run the product configuration wizard. now when i run the following command on both servers

(get-spfarm).buildversion

on live i got:-

Major  Minor  Build  Revision
-----  -----  -----  --------
15     0      4641   1000

while on staging i got:-

PS C:\> (Get-SPFarm).BuildVersion

Major  Minor  Build  Revision
-----  -----  -----  --------
15     0      4667   1000

so why i have different build numbers (4641 & 4667). i have noted on my live server that windows update tool is showing the following update for SharePoint foundation server http://ift.tt/1FE0XQA (this update was installed by mistake inside my staging), so could this update cause the difference ?

second question. is there any problem of installing SharePoint foundation updates inside SharePoint server 2013 professional ?