A security expert shared a new Microsoft Defender vulnerability called “RoguePlanet” only hours after Microsoft fixed two earlier problems in June 2026 Patch Tuesday. The researcher named Nightmare Eclipse says a new flaw affects fully updated Windows 10 and Windows 11 devices. It lets attackers open a command prompt with SYSTEM rights through a flaw in … Continue reading New Windows Defender ‘RoguePlanet’ zero-day grants SYSTEM privileges