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CVE-2019-0859

Severity
HIGH
CVSS
7.8
EPSS
0.04151
Risk score
57.65
CISA KEV
Yes
PoC
No
Published
2021-11-03
Modified
2021-11-03
First seen
2026-08-07
Aliases
EUVD-2019-1610, GHSA-VGP9-2HHF-FP9R
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-2019-0859
euvd EUVD-2019-1610

Description

Microsoft Win32k fails to properly handle objects in memory causing privilege escalation. Successful exploitation allows an attacker to run code in kernel mode.

References