Unrated severityCISA KEVNVD Advisory· Published Dec 12, 2018· Updated Oct 21, 2025

CVE-2018-8639

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 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. This CVE ID is unique from CVE-2018-8641.

Affected products

Microsoft/Windows 7v5
Range: 32-bit Systems Service Pack 1
Microsoft/Windows Server 2012 R2v5
Range: (Server Core installation)
Microsoft/Windows RT 8.1v5
Range: Windows RT 8.1
Microsoft/Windows Server 2008v5
Range: 32-bit Systems Service Pack 2
Microsoft/Windows Server 2019v5
Range: (Server Core installation)
Microsoft/Windows Server 2012v5
Range: (Server Core installation)
Microsoft/Windows 8.1v5
Range: 32-bit systems
Microsoft/Windows Server 2016v5
Range: (Server Core installation)
Microsoft/Windows Server 2008 R2v5
Range: Itanium-Based Systems Service Pack 1
Microsoft/Windows 10v5
Range: 32-bit Systems
Microsoft/Windows 10 Serversv5
Range: version 1709 (Server Core Installation)

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.securityfocus.com/bid/106093mitrevdb-entryx_refsource_BID
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8639mitrex_refsource_CONFIRM

News mentions

No linked articles in our index yet.

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