Windows Event Collector Service Elevation of Privilege Vulnerability

What privileges could an attacker gain by exploiting this vulnerability?
Successful exploitation could allow an attacker to execute code in the security context of the affected service. The permissions available to the attacker would be limited to those granted to that service.

According to the CVSS metric, attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation requires a memory allocation to fail at a particular point in the affected operation. An attacker cannot assume that the operation will encounter that failure during normal use.

Security updates
10.0.17763.9487 — https://support.microsoft.com/help/5131085
10.0.20348.5870 — https://support.microsoft.com/help/5131090
10.0.19044.7846 — https://support.microsoft.com/help/5131096
10.0.26100.33822 — https://support.microsoft.com/help/5131080
10.0.26100.33730 — https://support.microsoft.com/help/5131077
10.0.26200.9974 — https://support.microsoft.com/help/5132061
10.0.26200.9911 — https://support.microsoft.com/help/5132043
10.0.22631.7711 — https://support.microsoft.com/help/5131087
10.0.28000.3501 — https://support.microsoft.com/help/5132059
10.0.14393.9688 — https://support.microsoft.com/help/5131291