Diagnostics Hub Standard Collector Service Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-28313, CVE-2021-28322.
http://packetstormsecurity.com/files/162251/Microsoft-DiagHub-Privilege-Escalation.html
http://seclists.org/fulldisclosure/2021/Apr/40
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28321