Win32k Elevation of Privilege Vulnerability

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

Is the Preview Pane an attack vector for this vulnerability?
No, the Preview Pane is not an attack vector.

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 prepare the target environment to improve exploit reliability.

Security updates
10.0.17763.8511 — https://support.microsoft.com/help/5078752
10.0.20348.4893 — https://support.microsoft.com/help/5078766
10.0.20348.4830 — https://support.microsoft.com/help/5078737
10.0.19044.7058 — https://support.microsoft.com/help/5078885
10.0.26100.32522 — https://support.microsoft.com/help/5078740
10.0.26100.32463 — https://support.microsoft.com/help/5078736
10.0.26200.8037 — https://support.microsoft.com/help/5079473
10.0.26200.7979 — https://support.microsoft.com/help/5079420
10.0.22631.6783 — https://support.microsoft.com/help/5078883
10.0.25398.2207 — https://support.microsoft.com/help/5078734
10.0.14393.8957 — https://support.microsoft.com/help/5078938
6.2.9200.25973 — https://support.microsoft.com/help/5078775
6.3.9600.23074 — https://support.microsoft.com/help/5078774
16.0.19822.20000 — https://support.google.com/googleplay/answer/113412?hl=en