9.3

CVE-2018-8256: microsoft microsoft.powershell.archive

CVSS: 9.3v2.0HighModified
Published 14-11-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-8256 is a high (CVSS 9.3) vulnerability in microsoft microsoft.powershell.archive. EPSS estimates a 22.64% chance of exploitation in the next 30 days, higher than 97.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.3/10
010
High · v2.0 (NVD)
EPSS score
22.64%
0%100%
High · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-11-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

22.64%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

0.00 pp

From 22.64% on 19-09-2026

19-09-202619-10-2026
EPSS score
22.64%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Microsoft13 products
  • microsoft.powershell.archive1.2.2.0
  • powershell_core6.0 | 6.1
  • windows_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 | na | 1607 | 1703 | 1709 | 1803 | 1809
  • windows 10 serversversion 1709 (Server Core Installation) | version 1803 (Server Core Installation)
  • windows_732-bit Systems Service Pack 1 | x64-based Systems Service Pack 1 | na

1 vendor · 13 products

References

3 links