CVE-2026-50656

Microsoft has patched the RoguePlanet zero-day vulnerability (CVE-2026-50656) in Microsoft Defender, an elevation of privilege flaw that could allow attackers to gain system-level access. The fix is included in the updated Malware Protection Engine version 1.1.26060.3008, which automatically updates for most users. Systems with other antivirus software like Malwarebytes are not affected if Defender is disabled.