Microsoft Online Certificate Status Protocol (OCSP) Remote Code Execution Vulnerability

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 win a race condition.

According to the CVSS metric, privileges required is high (PR:H). What does that mean for this vulnerability?
To successfully exploit this vulnerability the attacker must be an authenticated user that is granted the "manage online responder" permission. This permission defines who can use the Online Responder snap-in to modify the configuration of the Online Responder, and should be granted very selectively.

Security updates
10.0.17763.5329 — https://support.microsoft.com/help/5034127
10.0.20348.2227 — https://support.microsoft.com/help/5034129
10.0.25398.643 — https://support.microsoft.com/help/5034130
10.0.14393.6614 — https://support.microsoft.com/help/5034119
6.0.6003.22464 — https://support.microsoft.com/help/5034173
6.0.6003.22464 — https://support.microsoft.com/help/5034176
6.1.7601.26910 — https://support.microsoft.com/help/5034169
6.1.7601.26910 — https://support.microsoft.com/help/5034167
6.2.9200.24664 — https://support.microsoft.com/help/5034184
6.3.9600.21765 — https://support.microsoft.com/help/5034171