Nightmare Eclipse Returns: RoguePlanet Zero‑Day Grants SYSTEM on Patched Windows
On June 9, 2026, security researcher Nightmare Eclipse released the RoguePlanet zero‑day exploit that leverages a race condition in Microsoft Defender to spawn a SYSTEM‑level command prompt on Windows 10/11 machines fully patched with the June updates, while also hinting at a possible BitLocker bypass.
