Windows iSCSI Service Denial of Service Vulnerability

According to the CVSS score, the attack vector is adjacent (AV:A). What does this mean for this vulnerability?
This attack is limited to systems connected to the same network segment as the attacker. The attack cannot be performed across multiple networks (for example, a WAN) and would be limited to systems on the same network switch or virtual network.

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 gather information specific to the environment and take additional actions prior to exploitation to prepare the target environment.

Security updates
10.0.17763.6054 — https://support.microsoft.com/help/5040430
10.0.20348.2582 — https://support.microsoft.com/help/5040437
10.0.22000.3079 — https://support.microsoft.com/help/5040431
10.0.19044.4651 — https://support.microsoft.com/help/5040427
10.0.22621.3880 — https://support.microsoft.com/help/5040442
10.0.25398.1009 — https://support.microsoft.com/help/5040438
10.0.10240.20710 — https://support.microsoft.com/help/5040448
10.0.14393.7159 — https://support.microsoft.com/help/5040434
6.0.6003.22769 — https://support.microsoft.com/help/5040499
6.0.6003.22769 — https://support.microsoft.com/help/5040490
6.1.7601.27219 — https://support.microsoft.com/help/5040497
6.1.7601.27219 — https://support.microsoft.com/help/5040498
6.2.9200.24975 — https://support.microsoft.com/help/5040485
6.3.9600.22074 — https://support.microsoft.com/help/5040456