CVE-2018-8256

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

A remote code execution vulnerability exists when PowerShell improperly handles specially crafted files, aka "Microsoft PowerShell Remote Code Execution Vulnerability." This affects Windows RT 8.1, PowerShell Core 6.0, Microsoft.PowerShell.Archive 1.2.2.0, Windows Server 2016, Windows Server 2012, Windows Server 2008 R2, Windows Server 2019, Windows 7, Windows Server 2012 R2, PowerShell Core 6.1, Windows 10 Servers, Windows 10, Windows 8.1.

Metrics

CVSS 3.0 8.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected software

VendorProductVersions
MicrosoftWindows 732-bit Systems Service Pack 1; x64-based Systems Service Pack 1
MicrosoftMicrosoft.PowerShell.Archive1.2.2.0
MicrosoftWindows 10 Serversversion 1709 (Server Core Installation); version 1803 (Server Core Installation)
MicrosoftWindows Server 2012 R2(Server Core installation)
MicrosoftWindows RT 8.1Windows RT 8.1
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 Server 2012(Server Core installation)
MicrosoftPowerShell Core6.0; 6.1
MicrosoftWindows Server 2016(Server Core installation)
MicrosoftWindows 8.132-bit systems; x64-based systems
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 ARM64-based Systems; Version 1709 for x64-based Systems; Version 1803 for 32-bit Systems; Version 1803 for ARM64-based Systems; Version 1803 for x64-based Systems; Version 1809 for 32-bit Systems; Version 1809 for ARM64-based Systems; Version 1809 for x64-based Systems; x64-based Systems
MicrosoftWindows Server 2019(Server Core installation)

References

Timeline

Published
Nov 14, 2018
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2018

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CVE-2018-8256: High severity, CVSS 8.8 | Vulnix