known ransomware use

Microsoft Windows Privilege Escalation Vulnerability

Added to KEV
2022-03-15
Federal due date
2022-04-05
Vendor
Microsoft
Product
Windows
EPSS
97.2th percentile (score 0.365, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Known
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2019-1322

CISA short description

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.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.