Windows Registry Elevation of Privilege Vulnerability

What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation of this vulnerability requires an attacker to have a deep understanding of the system and the ability to manipulate its components to trigger a specific condition. Successful exploitation is not guaranteed and depends on a combination of factors that may include the environment, system configuration, and the presence of additional security measures.

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
This vulnerability could be triggered when a windows client connects to a malicious remote share.

Security updates
10.0.17763.6532 — https://support.microsoft.com/help/5046615
10.0.20348.2849 — https://support.microsoft.com/help/5046616
10.0.20348.2819 — https://support.microsoft.com/help/5046698
10.0.19044.5131 — https://support.microsoft.com/help/5046613
10.0.22621.4460 — https://support.microsoft.com/help/5046633
10.0.25398.1251 — https://support.microsoft.com/help/5046618
10.0.26100.2314 — https://support.microsoft.com/help/5046617
10.0.26100.2240 — https://support.microsoft.com/help/5046696
6.0.6003.22966 — https://support.microsoft.com/help/5046661
6.0.6003.22966 — https://support.microsoft.com/help/5046639