Kernel Streaming Service 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 local (AV:L). What does this mean for this vulnerability?
The attacker would have to be an authenticated user logged on to the vulnerable system to be able to exploit this vulnerability.

Security updates
10.0.17763.7314 — https://support.microsoft.com/help/5058392
10.0.20348.3692 — https://support.microsoft.com/help/5058385
10.0.20348.3630 — https://support.microsoft.com/help/5058500
10.0.19044.5854 — https://support.microsoft.com/help/5058379
10.0.22621.5335 — https://support.microsoft.com/help/5058405
10.0.26100.4061 — https://support.microsoft.com/help/5058411
10.0.26100.3981 — https://support.microsoft.com/help/5058497
10.0.25398.1611 — https://support.microsoft.com/help/5058384
10.0.10240.21014 — https://support.microsoft.com/help/5058387
10.0.14393.8066 — https://support.microsoft.com/help/5058383
6.0.6003.23279 — https://support.microsoft.com/help/5058449
6.0.6003.23279 — https://support.microsoft.com/help/5058429
6.1.7601.27729 — https://support.microsoft.com/help/5058430
6.1.7601.27729 — https://support.microsoft.com/help/5058454
6.2.9200.25475 — https://support.microsoft.com/help/5058451
6.3.9600.22577 — https://support.microsoft.com/help/5058403