Microsoft Patches Defender ‘RoguePlanet’ Vulnerability

By Eduard Kovacs

AI Summary

Microsoft patched the 'RoguePlanet' Windows Defender privilege escalation vulnerability tracked as CVE-2026-50656 via a Microsoft Malware Protection Engine update, after researcher 'Nightmare-Eclipse' published a proof-of-concept exploit in early June. The fix was delivered through the automatic MDE signature update mechanism, but security teams should verify that Defender engine updates have been applied on all endpoints, particularly in environments with restricted update policies.

Read full article → https://www.securityweek.com/microsoft-patches-def…

Relevance score: 70.0/100

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