Requesting for more information on CVE-2023-27997 Critical Fortinet Fortigate Remote Code Execution Vulnerability

We have fortigate firewalls with versions 6.4.6, 6.4.7, 6.4.11 and post running unauthenticated scans we are not able to see this vulnerability “CVE-2023-27997 Critical Fortinet Fortigate Remote Code Execution Vulnerability” present among them even though all the versions so mentioned are affected. Can you help us understand if we should be running authenticated scans in order to detect this particular vulnerability

Appears to be an authenticated check only at this time. the vulnerability id is fortios-cve-2023-27997 and the way I checked is as follows (from run link in administration)
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