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Reflecting on Your Tier Model: CVE-2025-33073 and the One-Hop Problem

NTLM relay attack Active Directory diagram showing domain controller with unconstrained delegation vulnerability

The False Sense of Security SMB signing on domain controllers has become standard practice across most Active Directory environments. But this hardening may have created a false sense of security. CVE-2025-33073 changes the calculus by removing the prerequisite of admin access, enabling NTLM relay attack Active Directory exploitation through unconstrained delegation. Domain controllers enforce SMB […]