Microsoft Configuration Manager Elevation of Privilege Vulnerability

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Exploiting this vulnerability would require an attacker to satisfy the prerequisite of internal network foothold and relaying the Management Point machine identity which is chain-dependent, is not produced by this bug itself and is not normally exposed directly to the Internet.

According to the CVSS metric, the attack vector is adjacent (AV:A). What does that mean for this vulnerability?
Successful exploitation of this vulnerability requires that an attacker will need to first gain access to the restricted network before running an attack.

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

How could an attacker exploit this vulnerability?
An attacker with access to the restricted network and the ability to authenticate as a Configuration Manager management point could submit specially crafted data to an affected system. Successful exploitation could allow the attacker to gain administrative control of the Configuration Manager environment. User interaction is not required.

Security updates
5.00.9135.1042 — https://learn.microsoft.com/en-us/intune/configmgr/hotfix/2603/39398030