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CVE-2019-0859

Known Exploited (CISA KEV)HIGH
7.8
CVSS Severity Score
EPSS Score76.4720%
EPSS Percentile94.45th
PublishedApr 9, 2019
Last ModifiedOct 29, 2025

Vulnerability Description

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0685, CVE-2019-0803.

Affected Platforms (CPE)

💻
Microsoft

Windows 10 1507

All versions
💻
Microsoft

Windows 10 1507

All versions
💻
Microsoft

Windows 10 1607

All versions
💻
Microsoft

Windows 10 1607

All versions
💻
Microsoft

Windows 10 1703

All versions
💻
Microsoft

Windows 10 1703

All versions
💻
Microsoft

Windows 10 1709

All versions
💻
Microsoft

Windows 10 1709

All versions
💻
Microsoft

Windows 10 1709

All versions
💻
Microsoft

Windows 10 1803

All versions
💻
Microsoft

Windows 10 1803

All versions
💻
Microsoft

Windows 10 1803

All versions
💻
Microsoft

Windows 10 1809

All versions
💻
Microsoft

Windows 10 1809

All versions
💻
Microsoft

Windows 10 1809

All versions
💻
Microsoft

Windows 7

All versions
💻
Microsoft

Windows 8.1

All versions
💻
Microsoft

Windows Rt 8.1

All versions
💻
Microsoft

Windows Server 1709

All versions
💻
Microsoft

Windows Server 1803

All versions
💻
Microsoft

Windows Server 2008

All versions
💻
Microsoft

Windows Server 2008

= r2
💻
Microsoft

Windows Server 2008

= r2
💻
Microsoft

Windows Server 2012

All versions
💻
Microsoft

Windows Server 2012

= r2
💻
Microsoft

Windows Server 2016

All versions
💻
Microsoft

Windows Server 2019

All versions

References & Advisories

🔗 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0859
🔗 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0859
🔗 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0859

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