An elevation of privilege vulnerability exists when the Windows ActiveX Installer Service improperly handles memory.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows ActiveX Installer Service Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0770, CVE-2020-0773.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0860