CVE-2018-8256

At a glance

Severity: Not available
EPSS: EPSS 22.64 % · percentile 98 (2026-10-27)
State: PUBLISHED
Published: 2018-11-14
Updated: 2024-08-05
Assigner: microsoft
NVD status: Modified

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.0	HIGH 8.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
CVSS 2.0	HIGH 9.3	AV:N/AC:M/Au:N/C:C/I:C/A:C	NVD · nvd@nist.gov (Primary)

European references

ENISA EUVD · EUVD-2018-19922
GCVE · GCVE-0-2018-8256

CERT-FR advisories

CERTFR-2018-AVI-554 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
CERTFR-2018-AVI-552 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:microsoft:microsoft.powershell.archive:1.2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:powershell_core:6.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:powershell_core:6.1:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*

Affected products

Product	Versions
Microsoft · Windows 7	affected 32-bit Systems Service Pack 1 ; affected x64-based Systems Service Pack 1
Microsoft · Microsoft.PowerShell.Archive	affected 1.2.2.0
Microsoft · Windows 10 Servers	affected version 1709 (Server Core Installation) ; affected version 1803 (Server Core Installation)
Microsoft · Windows Server 2012 R2	affected (Server Core installation)
Microsoft · Windows RT 8.1	affected Windows RT 8.1
Microsoft · Windows Server 2008 R2	affected Itanium-Based Systems Service Pack 1 ; affected x64-based Systems Service Pack 1 ; affected x64-based Systems Service Pack 1 (Server Core installation)
Microsoft · Windows Server 2012	affected (Server Core installation)
Microsoft · PowerShell Core	affected 6.0 ; affected 6.1
Microsoft · Windows Server 2016	affected (Server Core installation)
Microsoft · Windows 8.1	affected 32-bit systems ; affected x64-based systems
Microsoft · Windows 10	affected 32-bit Systems ; affected Version 1607 for 32-bit Systems ; affected Version 1607 for x64-based Systems ; affected Version 1703 for 32-bit Systems ; affected Version 1703 for x64-based Systems ; affected Version 1709 for 32-bit Systems
Microsoft · Windows Server 2019	affected (Server Core installation)

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD