Actively exploited in the wild
Microsoft Windows Improper Privilege Management Vulnerability
Microsoft - Windows · Listed in the CISA KEV since 2026-02-10. This indicates confirmed attacks in production environments.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CVE-2026-21533
HighCVSS 7.8KEVSummary
Nieprawidłowe zarządzanie uprawnieniami w systemie Windows Remote Desktop umożliwia autoryzowanemu atakującemu lokalne podniesienie uprawnień.
Risk Assessment
Organizacja może być narażona na nieautoryzowany dostęp do systemów i danych, co może prowadzić do poważnych naruszeń bezpieczeństwa.
Recommendation
Zaleca się przegląd i wzmocnienie polityki zarządzania uprawnieniami oraz regularne aktualizowanie systemu, aby zminimalizować ryzyko wykorzystania tej podatności.
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Original NVD description (English source)
Improper privilege management in Windows Remote Desktop allows an authorized attacker to elevate privileges locally.