McAfee Safe Connect before 2.16.1.126 may allow an adversary with system privileges to achieve privilege escalation by loading arbitrary DLLs.
https://www.mcafee.com/support/?articleId=TS103462&page=shell&shell=article-view
https://www.mcafee.com/en-us/consumer-corporate/mcafee-labs/product-security-bulletins.html