An out-of-bounds write vulnerability exists in Fortinet FortiAuthenticator versions 8.0.0 through 8.0.3 and 6.6.0 through 6.6.10. This flaw may allow an unauthenticated attacker to execute unauthorized code or commands via HTTP requests if they can bypass ASLR protections. The vulnerability has a high severity rating with a CVSS score of 8.1.