Microsoft PowerShell
CVE-2018-8327 — PowerShell Editor Services Remote Code Execution Vulnerability
Executive Summary
A remote code execution vulnerability exists in PowerShell Editor Services. An attacker who successfully exploited this vulnerability could execute malicious code on a vulnerable system. In an attack scenario, an attacker could execute malicious code in a PowerShell Editor Services process. The update addresses the vulnerability by correcting how PowerShell Editor Services secures local connections.
Overview
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
EPSS Score
0.21173
probability of exploitation in the next 30 days
0.97368 percentile - updated 2026-08-14
View on FIRST.org
Affected Products
2 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| PowerShell Editor Services | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| PowerShell Extension for Visual Studio Code | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
Patches
1 patch
| Article | Type | Restart |
|---|---|---|
Release Notes |
Security Update | Maybe |
Exploits & PoC
No public exploit or PoC has been linked for this CVE yet. When available, references are sourced from public repositories and may be unverified or non-functional — review carefully before use.
Detection Rules
No public Sigma or Nuclei detection rule has been mapped to this CVE yet. Coverage is concentrated on exploited / high-profile vulnerabilities; check SigmaHQ for updates.
Acknowledgments
Ryan Cumbee (Casaba Security, LLC) & Cory Carson (Casaba Security, LLC) under contract for Microsoft at the time.
References
On This Page