Windows BitLocker 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, user interaction is required (UI:R) and privileges required is Low (PR:L). What does that mean for this vulnerability?
An authorized attacker with privileges could send controlled inputs to exploit this vulnerability.

Security updates
10.0.17763.7792 — https://support.microsoft.com/help/5065428
10.0.20348.4171 — https://support.microsoft.com/help/5065432
10.0.20348.4106 — https://support.microsoft.com/help/5065306
10.0.19044.6332 — https://support.microsoft.com/help/5065429
10.0.22621.5909 — https://support.microsoft.com/help/5065431
10.0.26100.6584 — https://support.microsoft.com/help/5065426
10.0.26100.6508 — https://support.microsoft.com/help/5065474
10.0.25398.1849 — https://support.microsoft.com/help/5065425
10.0.10240.21128 — https://support.microsoft.com/help/5065430
10.0.14393.8422 — https://support.microsoft.com/help/5065427
6.1.7601.27929 — https://support.microsoft.com/help/5065468
6.1.7601.27929 — https://support.microsoft.com/help/5065510
6.2.9200.25675 — https://support.microsoft.com/help/5065509
6.3.9600.22774 — https://support.microsoft.com/help/5065507