ACTIVELY EXPLOITED

CVE-2019-1322: Microsoft Windows Privilege Escalation Vulnerability

Facts
VendorMicrosoft
ProductWindows
Actively exploitedYes
Added to CISA KEV15 Mar 2022
CISA federal deadline5 Apr 2022
Ransomware useKnown

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

A privilege escalation vulnerability exists when Windows improperly handles authentication requests. An attacker who successfully exploited this vulnerability could run processes in an elevated context.

SOURCES

Other Microsoft flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.