Microsoft Defender privilege-escalation vulnerability CVE-2026-50656 (RoguePlanet), exploiting a race condition, has public proof-of-concept code available enabling attackers to spawn processes with SYSTEM privileges on Windows systems. Microsoft acknowledged the flaw and is developing a patch.
- Microsoft Working on Patch for 'RoguePlanet' Zero-Day - Security(opens in a new tab)
- CVE-2026-50656 RoguePlanet Zero-Day Hits Windows Defender(opens in a new tab)
- Microsoft working on patch for RoguePlanet Defender zero-day (CV(opens in a new tab)
- Microsoft Confirms RoguePlanet Zero-Day Exploit Targeting Defend(opens in a new tab)
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