ExploitedIn CISA KEVFix available

CVE-2019-0543

Exploitation confirmed. First attested on 2022-03-15 by CISA-ADP, CISA KEV, GCVE · kevintel.

Published2019-01-08
WeaknessCWE-287

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2019-01-0821:29CVE publishedNVD
2019-01-14Exploit-DB entryExploit-DB
2022-03-15Added to the CISA KEV catalogCISA KEV
2022-03-15Listed as exploited by GCVEGCVE
2022-03-15Exploitation first reportedCISA KEV
2025-02-0415:28SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-0543?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-0543?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Microsoft windows server 2008

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD
—	= r2	no fix published	NVD

Microsoft windows server 2012

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD
—	= r2	no fix published	NVD

Microsoft windows 10 1507

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

12 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

CISA’s required action: Apply updates per vendor instructions.due 2022-04-05

Advisories and patches

portal.msrc.microsoft.comPatch · Vendor Advisory

Detection

read 2026-11-03 22:42 UTC

Nuclei template: none so far
Exploit-DB: EDB-46156
Proof-of-concept repositories: none listed
Metasploit modules: none listed

CISA Known Exploited Vulnerability

Date Added: 2022-03-15
Patch Due Date: 2022-04-05
Ransomware Use: Known
Required Action: Apply updates per vendor instructions.

Sources

CISA KEVKEV entry2022-03-15
ENISA EUVDexploitation2022-03-152022-03-15
GCVEexploitation2022-03-15
CISA-ADPSSVC decisionactive2025-02-04
OpenCVESSVC decisionactive—
CISA-ADPCVSS 3.17.82025-02-04
NVDCVSS 3.17.8read 2026-10-23
NVDCVSS 2.04.6read 2026-10-23
CISA-ADPweakness (CWE)CWE-2872025-02-04
NVDweakness (CWE)CWE-287read 2026-10-23
FIRST EPSSEPSS score4.7 %2026-11-03
Exploit-DBdetectionread 2026-11-03
GitHub Advisoriesadvisory—

Identifiers

EUVD-2019-1314same flawENISA EUVD · LicenseRef-ENISA-legal-notice
GHSA-3vmp-cf5x-w457same flawGitHub Advisory Database · CC-BY-4.0

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2019-01-08
Last Modified: 2026-06-17
NVD status: Analyzed
GitHub Advisory: GHSA-3vmp-cf5x-w457

Frequently asked questions

What is CVE-2019-0543?

Is CVE-2019-0543 actively exploited?

Yes. CVE-2019-0543 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-04-05.

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

CVE-2019-0543 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Hear about the next vulnerability in your software

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this product CISA KEV additions, March 2022 Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

For a threat intelligence platform: malware, C2 and ransomware indicators over STIX/TAXII.
Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record

CISA KEV · CC0-1.0 (cisagov/kev-data)
CVE Program · CVE Program Terms of Use
ENISA EU Vulnerability Database · ENISA legal notice §1.2 (reproduction authorised, provided the source is acknowledged)
Exploit-DB · Exploit-DB terms of service · terms restrict redistribution
FIRST EPSS · EPSS terms of use (free use, attribution requested)
GCVE · GCVE dump terms (preserve source attribution)
GitHub Advisory Database · CC-BY-4.0 · GHSA-3vmp-cf5x-w457
NVD · Public domain (17 U.S.C. § 105) for NVD-authored data; third-party content under its own terms
OpenCVE · OpenCVE terms of service · terms restrict redistribution
CISA Vulnrichment · CC0-1.0

MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

CVE records are reproduced under the CVE Program Terms of Use: MITRE grants a perpetual, royalty-free licence to reproduce and redistribute them, provided this designation and the licence travel with every copy. Read the licence

This product uses data from the NVD API but is not endorsed or certified by the NVD.

Sources and licences of the CVE data