Lightweight Directory Access Protocol (LDAP) Client 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.

How could an attacker exploit this vulnerability?
An unauthenticated attacker could send a specially crafted request to a vulnerable server. Successful exploitation could result in the attacker's code running in the context of the SYSTEM account.

Security updates
10.0.17763.6659 — https://support.microsoft.com/help/5048661
10.0.20348.2966 — https://support.microsoft.com/help/5048654
10.0.20348.2908 — https://support.microsoft.com/help/5048800
10.0.19044.5247 — https://support.microsoft.com/help/5048652
10.0.22621.4602 — https://support.microsoft.com/help/5048685
10.0.26100.2605 — https://support.microsoft.com/help/5048667
10.0.26100.2528 — https://support.microsoft.com/help/5048794
10.0.25398.1308 — https://support.microsoft.com/help/5048653
10.0.10240.20857 — https://support.microsoft.com/help/5048703
10.0.14393.7606 — https://support.microsoft.com/help/5048671
6.0.6003.23016 — https://support.microsoft.com/help/5048710
6.0.6003.23016 — https://support.microsoft.com/help/5048744
6.1.7601.27467 — https://support.microsoft.com/help/5048695
6.1.7601.27467 — https://support.microsoft.com/help/5048676
6.2.9200.25222 — https://support.microsoft.com/help/5048699
6.3.9600.22318 — https://support.microsoft.com/help/5048735