Don’t Wait for a Patch. Mitigate RedSun Zero-Day Risk in Microsoft Defender Today 

RedSun is a critical zero-day local privilege escalation in Microsoft Defender that enables a low-privileged user to escalate to NT AUTHORITY\SYSTEM by manipulating Defender's cloud-file restoration logic; no vendor patch exists, Qualys VMDR provides detection (QID 92382), and Qualys TruRisk™ Eliminate offers immediate, script-based mitigations (e.g., disabling the Cloud Files Mini Filter) to remove exploitability and provide auditable risk reduction.