Summary

The privilege escalation vulnerability tracked as CVE-2026-50656 has been patched with a Microsoft Malware Protection Engine update. Microsoft has begun rolling out patches for a Defender vulnerability known as RoguePlanet, roughly one month after a researcher published a zero-day exploit for it. Officially tracked as CVE-2026-50656 , the vulnerability leverages a race condition, enabling an attacker to escalate privileges to System.

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