CVE-2018-8256

highpriority · track · 43EPSS 0.226 · 98 %ileEURUUS
grimoire priorityP1 · Urgent
Exploitable?
—
no known exploitation
Likely / severe?
22.6% (98th) EPSS
CVSS 9.3 · high
Is it mine?
68 products
Check your exposure
Who says so?
3 sources
cnnvd · enisa_euvd · fstec_bdu

EPSS · scored 2026-10-27

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

9.3
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.3–9.3

v2.09.3highAV:N/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 10
v3.08.8highCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9
v3.08.1highCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.16.3mediumAV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · FSTEC (BDU) RU
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20US
03

affected products (68)

Products and version ranges known to be affected.

showing 20 of 68
04

also known as (4)

Other names and identifiers for this entity.

05

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bduNVDCVE.orgMITRE
published 2018-11-14modified 2026-06-17
06

references (10)

External citations — patches, advisories, analysis.

scry

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