Researchers have discovered a vulnerability in the remote procedure calls (RPC) for the Windows Server service, which could allow an attacker to gain control over the domain controller (DC) in a specific network configuration and execute remote code.

Malicious actors could also exploit the vulnerability to modify a server’s certificate mapping to perform server spoofing.

Vulnerability CVE-2022-30216, which exists in unpatched Windows 11 and Windows Server 2022 machines, was addressed in July’s Patch Tuesday, but a report from Akamai researcher Ben Barnes, who discovered the vulnerability, offers technical details on the bug.