An origin validation error vulnerability exists in Fortinet FortiClientMac versions 7.4.0 through 7.4.7, FortiClientWindows versions 7.4.0 through 7.4.7 and 7.2.0 through 7.2.14, and FortiClientWindowsPAM versions 7.4.7 and 7.2.14. This flaw may allow an unauthorized remote attacker to execute unauthorized code or commands if the victim interacts with malicious content. The vulnerability has a high severity score of 9.6 CVSS v3.1, indicating critical impact on confidentiality, integrity, and availability.