CVE-2019-1322VulnerabilityPublished 03/15/2022Updated 10/24/2026

CVE-2019-1322: Microsoft Windows Privilege Escalation Vulnerability

Affects Microsoft WindowsSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 03/15/2022
KEV deadline: 04/05/2022
Ransomware: Used in ransomware campaigns
EPSS: 19.2% chance of exploitation in 30 days – higher than 97% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2019-1322 (opens in a new tab)

Description

CVE-2019-1322 is a privilege escalation vulnerability in Microsoft Windows where improper handling of authentication requests allows an attacker to run processes with elevated privileges. This vulnerability has been exploited in the wild and is known to have been used in ransomware campaigns.

Summary

This vulnerability arises from Windows improperly handling authentication requests, enabling an attacker who successfully exploits it to execute processes in an elevated security context. The flaw allows privilege escalation, which can lead to unauthorized administrative control on affected systems. It has been observed in active exploitation scenarios, including ransomware attacks.

Impact

Successful exploitation results in privilege escalation, allowing attackers to run code with elevated privileges on affected Windows systems. This can facilitate further compromise, including installation of malware or ransomware, and unauthorized system control.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 10:55:29 UTC

References

Related threats