Netlogon RPC Elevation of Privilege Vulnerability. Successful exploitation of this vulnerability requires an attacker to gather information specific to the environment of the targeted component. An attacker who successfully exploited this vulnerability could gain the privileges of the targeted user. A Man-in-the-middle (MitM) attacker could leverage cryptographic protocol vulnerabilities in the Windows Netlogon protocol when RPC Signing is used instead of RPC Sealing. Where RPC Signing is used instead of RPC Sealing the attacker could gain control of the service and then might be able to modify Netlogon protocol traffic to elevate their privileges.