Kaspersky: “So far, we have detected a very limited number of attacks using this vulnerability” The exploit was executed by the first stage of a malware installer in order to gain the necessary privileges for persistence on the victim’s system. November 2018 Patch Tuesday: Critical and Important Flaws and Vulnerabilities are published on November 18, 2018, with details released on November 28, 2018 and February 28. The vulnerability is the latest in a series of zero-day vulnerabilities that have been publicly disclosed by cyber criminals.
Source: https://thehackernews.com/2018/11/microsoft-patch-tuesday-updates.html