A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiADC version 7.0.0 through 7.0.2, FortiADC version 6.2.0 through 6.2.3, FortiADC version version 6.1.0 through 6.1.6, FortiADC version 6.0.0 through 6.0.4, FortiADC version 5.4.0 through 5.4.5 may allow an attacker to execute unauthorized code or commands via specifically crafted HTTP requests.