Microsoft fixed Defender flaw RoguePlanet (CVE-2026-50656)
ID: 1e9c7003-814b-5029-85a2-95a2ed2839d7
STIX ID: report--1e9c7003-814b-5029-85a2-95a2ed2839d7
Feed Name: Security Affairs
Threat Score
Microsoft patched RoguePlanet (CVE-2026-50656), a race-condition local privilege escalation in the Microsoft Malware Protection Engine that can grant SYSTEM privileges. A public proof-of-concept was published and tested against fully updated Windows 10/11, and Microsoft released Microsoft Malware Protection Engine version 1.1.26060.3008 with hardening to mitigate the issue.
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