// Microsoft 365HIGH
Security researcher Chaotic Eclipse released a proof-of-concept exploit called ShieldBreak demonstrating a claimed full patch bypass for CVE-2026-50656 (RoguePlanet), a race condition in Microsoft Defender for Windows that enables SYSTEM privilege escalation. The PoC reportedly achieves 100% success rate on Windows 11 25H2 and Windows Server 2025, contradicting Microsoft's July patch claims.
- ShieldBreak Zero-Day PoC Claims Microsoft Defender Patch Bypass (opens in a new tab)
- Nightmare Eclipse bypasses Microsoft patch with new Defender exp(opens in a new tab)
- After Microsoft threatened legal action, a security researcher p(opens in a new tab)
- Microsoft-vendetta hacker has a new zero day that gives system p(opens in a new tab)
- Microsoft working on Defender patch for ShieldBreak zero-day(opens in a new tab)
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