Is CVE-2019-0543 actively exploited?

CVE-2019-0543 has no public evidence of in-the-wild exploitation as of 2026-01-12.

What is the CVSS score for CVE-2019-0543?

CVE-2019-0543 has a CVSS score of 7.8 (HIGH severity). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2019-0543?

Patch guidance is available from microsoft security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2019-0543.

Fix CVE-2019-0543 - HIGH microsoft windows 10 1507

Q: Which products are affected by CVE-2019-0543?

25 products: microsoft windows 10 1507, microsoft windows 10 1507, microsoft windows 10 1607, microsoft windows 10 1607, microsoft windows 10 1703, and 20 more.

Description

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.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: local
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-287 · Improper Authentication CWE-287 · Improper Authentication

Metadata

Primary Vendor: MICROSOFT
Published: 1/8/2019
Last Modified: 1/12/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

microsoft : windows_10_1507microsoft : windows_10_1507microsoft : windows_10_1607microsoft : windows_10_1607microsoft : windows_10_1703microsoft : windows_10_1703microsoft : windows_10_1709microsoft : windows_10_1803microsoft : windows_10_1803microsoft : windows_10_1803microsoft : windows_10_1809microsoft : windows_10_1809microsoft : windows_10_1809microsoft : windows_7microsoft : windows_8.1microsoft : windows_rt_8.1microsoft : windows_server_1709microsoft : windows_server_1803microsoft : windows_server_2008microsoft : windows_server_2008microsoft : windows_server_2008microsoft : windows_server_2012microsoft : windows_server_2012microsoft : windows_server_2016microsoft : windows_server_2019

Remediation Guidance

Executive Summary

View on NIST NVD