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CVE-2019-0543

HighPublished

Microsoft Windows Privilege Escalation Vulnerability

Published: Jan 8, 2019
Updated: Jan 12, 2026
Assigning CNA: microsoft
Evidence observed: Jan 14, 2019

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

4.7%

Low · next 30 days

Percentile: 91.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

CISA Known Exploited

This CVE appears in the CISA Known Exploited Vulnerabilities catalog.

Summary

An elevation of privilege vulnerability exists when Windows improperly handles authentication requests, aka "Microsoft Windows Elevation of Privilege Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.

Sources

Microsoft Windows 10 - SSPI Network Authentication Session 0 Privilege EscalationExploit
Google Security Research · windows · Jan 14, 2019

Responsible use

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