sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if the server is in Windows Active Directory.
Exploitability
AV:NAC:HPR:NUI:NScope
S:UImpact
C:LI:LA:N4.8/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NOther