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CVE-2019-0803

Severity
HIGH
CVSS
7.8
EPSS
0.4523
Risk score
72.03
CISA KEV
Yes
PoC
No
Published
2019-04-09
Modified
2025-10-21
First seen
2026-08-07
Aliases
EUVD-2019-1559, GHSA-6H99-5J8V-7R3P
Products
Microsoft:Win32k, Microsoft:Windows 10 Version 1607 for 32-bit Systems, Microsoft:Windows 10 Version 1607 for x64-based Systems, Microsoft:Windows 10 Version 1703 for 32-bit Systems, Microsoft:Windows 10 Version 1703 for x64-based Systems, Microsoft:Windows 10 Version 1709 for 32-bit Systems, Microsoft:Windows 10 Version 1709 for ARM64-based Systems, Microsoft:Windows 10 Version 1709 for x64-based Systems, Microsoft:Windows 10 Version 1803 for 32-bit Systems, Microsoft:Windows 10 Version 1803 for ARM64-based Systems, Microsoft:Windows 10 Version 1803 for x64-based Systems, Microsoft:Windows 10 Version 1809 for 32-bit Systems, Microsoft:Windows 10 Version 1809 for ARM64-based Systems, Microsoft:Windows 10 Version 1809 for x64-based Systems, Microsoft:Windows 10 for 32-bit Systems, Microsoft:Windows 10 for x64-based Systems, Microsoft:Windows 7 for 32-bit Systems Service Pack 1, Microsoft:Windows 7 for x64-based Systems Service Pack 1, Microsoft:Windows 8.1 for 32-bit systems, Microsoft:Windows 8.1 for x64-based systems, Microsoft:Windows RT 8.1, Microsoft:Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1, Microsoft:Windows Server 2008 R2 for x64-based Systems Service Pack 1, Microsoft:Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Core installation), Microsoft:Windows Server 2008 for 32-bit Systems Service Pack 2, Microsoft:Windows Server 2008 for 32-bit Systems Service Pack 2 (Core installation), Microsoft:Windows Server 2008 for Itanium-Based Systems Service Pack 2, Microsoft:Windows Server 2008 for x64-based Systems Service Pack 2, Microsoft:Windows Server 2008 for x64-based Systems Service Pack 2 (Core installation), Microsoft:Windows Server 2012, Microsoft:Windows Server 2012 (Core installation), Microsoft:Windows Server 2012 R2, Microsoft:Windows Server 2012 R2 (Core installation), Microsoft:Windows Server 2016, Microsoft:Windows Server 2016 (Core installation), Microsoft:Windows Server 2019, Microsoft:Windows Server 2019 (Core installation), Microsoft:Windows Server version 1709 (Core Installation), Microsoft:Windows Server version 1803 (Core Installation)
Sources
cisa.gov CVE-2019-0803
euvd EUVD-2019-1559

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-2019-0859.

References