CVE-2019-0543
High 7.8 Exploited in the wild (KEV) Used in ransomware campaigns
Confirmed active exploitation — CISA KEV catalog
- Name
- Microsoft Windows Privilege Escalation Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
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.
Metrics
- CVSS 3.1
-
7.8 (HIGH)
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 5% (percentile: 92) as of 1 November 2026
- CWE
- CWE-287
Affected products
microsoft: windows 10 1507; microsoft: windows 10 1607; microsoft: windows 10 1703; microsoft: windows 10 1709; microsoft: windows 10 1803; microsoft: windows 10 1809; microsoft: windows 7; microsoft: windows 8.1; microsoft: windows rt 8.1; microsoft: windows server 1709; microsoft: windows server 1803; microsoft: windows server 2008; microsoft: windows server 2012; microsoft: windows server 2016; microsoft: windows server 2019
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0543 PatchVendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0543 PatchVendor Advisory
- https://www.exploit-db.com/exploits/46156/ ExploitThird Party AdvisoryVDB Entry
- https://www.exploit-db.com/exploits/46156/ ExploitThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/106408 Broken LinkThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/106408 Broken LinkThird Party AdvisoryVDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019… US Government Resource