Windows USB Video Class System Driver 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 vector is physical (AV:P). What does that mean for this vulnerability?
To exploit this vulnerability, an unauthenticated attacker needs to physically connect a malicious USB device to the victim's machine.

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
10.0.10240.20826 — https://support.microsoft.com/help/5046665
10.0.14393.7515 — https://support.microsoft.com/help/5046612
6.0.6003.22966 — https://support.microsoft.com/help/5046661
6.0.6003.22966 — https://support.microsoft.com/help/5046639
6.1.7601.27415 — https://support.microsoft.com/help/5046687
6.1.7601.27415 — https://support.microsoft.com/help/5046705
6.2.9200.25165 — https://support.microsoft.com/help/5046697
6.3.9600.22267 — https://support.microsoft.com/help/5046682