A combination of a use of hard-coded cryptographic key vulnerability CWE-321 in FortiClientEMS 7.0.1 and below 6.4.6 and below and an improper certificate validation vulnerability CWE-297 in FortiClientWindows FortiClientLinux and FortiClientMac 7.0.1 and below 6.4.6 and below may allow an unauthenticated and network adjacent attacker to perform a man-in-the-middle attack between the EMS and the FCT via the telemetry protocol.