as mentioned above KB2545833 for lsass.exe cpu,memory issue,
KB2832248-V2-x64 for wmiprvse memory,cpu issue are the mentioned fixes are resolving or not resolving the problem on windows 2008 R2 standard server with sql server 2008 installed on the same server,if you have installed/implemented these fixes please provide the result/outcome of these fixes and also inform while installing is there any issue on the server.