CVE-2018-8339

HighCVSS 7.0/10Last modified Jun 17, 2026

Description

An elevation of privilege vulnerability exists in the Windows Installer when the Windows Installer fails to properly sanitize input leading to an insecure library loading behavior, aka "Windows Installer Elevation of Privilege Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.

Metrics

CVSS 3.0 7.0/10CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-20

Affected software

VendorProductVersions
MicrosoftWindows 732-bit Systems Service Pack 1; x64-based Systems Service Pack 1
MicrosoftWindows Server 2012 R2(Server Core installation)
MicrosoftWindows RT 8.1Windows RT 8.1
MicrosoftWindows Server 200832-bit Systems Service Pack 2; 32-bit Systems Service Pack 2 (Server Core installation); Itanium-Based Systems Service Pack 2; x64-based Systems Service Pack 2; x64-based Systems Service Pack 2 (Server Core installation)
MicrosoftWindows Server 2012(Server Core installation)
MicrosoftWindows 8.132-bit systems; x64-based systems
MicrosoftWindows Server 2016(Server Core installation)
MicrosoftWindows Server 2008 R2Itanium-Based Systems Service Pack 1; x64-based Systems Service Pack 1; x64-based Systems Service Pack 1 (Server Core installation)
MicrosoftWindows 1032-bit Systems; Version 1607 for 32-bit Systems; Version 1607 for x64-based Systems; Version 1703 for 32-bit Systems; Version 1703 for x64-based Systems; Version 1709 for 32-bit Systems; Version 1709 for x64-based Systems; Version 1803 for 32-bit Systems; Version 1803 for x64-based Systems; x64-based Systems
MicrosoftWindows 10 Serversversion 1709 (Server Core Installation); version 1803 (Server Core Installation)

References

Timeline

Published
Aug 15, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-8339: High severity, CVSS 7.0 | Vulnix