What’s Vulnerable › Vulnerabilities

CVE-2018-8327

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 23.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-07-11 · updated 2026-06-17

Description

A remote code execution vulnerability exists in PowerShell Editor Services, aka "PowerShell Editor Services Remote Code Execution Vulnerability." This affects PowerShell Editor, PowerShell Extension.

Affected products

• Microsoft Powershell: before 1.7.0 — fixed in 1.7.0
• Microsoft Powershell Editor Services: before 1.7.0 — fixed in 1.7.0
• Microsoft PowerShell Editor: Services
• Microsoft PowerShell Extension: Visual Studio Code

How to fix

Upgrade to a fixed version: Microsoft Powershell 1.7.0; Microsoft Powershell Editor Services 1.7.0. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/104649
• http://www.securitytracker.com/id/1041251
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8327
• http://www.securityfocus.com/bid/104649
• http://www.securitytracker.com/id/1041251
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8327

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