ShieldBreak proof of concept bypasses Microsoft’s RoguePlanet patch to regain SYSTEM access
On August 11, 2026 researcher Nightmare Eclipse published ShieldBreak, a proof of concept that bypasses the fix for CVE-2026-50656 (RoguePlanet), the Microsoft Defender flaw patched in July. Independent analysts have confirmed it works, and Microsoft has not yet shipped a new fix.