Yungengxin Yun Jia Security Guard kgameprotect.sys sub_14000885C privileges management

A flaw has been found in Yungengxin Yun Jia Security Guard up to 2.7.1.9. Impacted is the function sub_14000885C in the library kgameprotect.sys. Executing a manipulation of the argument Pid can lead to improper privilege management. The attack requires local access. The vendor was contacted early about this disclosure but did not respond in any way.