{
  "id": 644915,
  "title": "ShieldBreak Zero-Day PoC Claims Microsoft Defender Patch Bypass With SYSTEM Access",
  "url": "https://urgent.news/2026/08/12/shieldbreak-zero-day-poc-claims-microsoft-defender-patch-bypass-with",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-08-12T06:41:38.000Z",
  "source": {
    "name": "The Hacker News",
    "slug": "the-hacker-news",
    "url": "https://thehackernews.com/2026/08/shieldbreak-zero-day-poc-claims.html"
  },
  "original_language": "en",
  "account": null,
  "summary": "The security researcher going by the name Chaotic Eclipse (aka INFINITE NIGHTMARE, MSNightmare, and Nightmare-Eclipse) has released a proof-of-concept (PoC) for a new Microsoft zero-day called ShieldBreak. The vulnerability, rooted in Microsoft Defender for Windows, demonstrates a patch bypass for CVE-2026-50656 (CVSS score: 7.8), otherwise known as RoguePlanet. RoguePlanet has been described",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}