CVE-2020-0951

What it is

<p>A security feature bypass vulnerability exists in Windows Defender Application Control (WDAC) which could allow an attacker to bypass WDAC enforcement. An attacker who successfully exploited this vulnerability could execute PowerShell commands that would be blocked by WDAC.</p> <p>To exploit the vulnerability, an attacker need administrator access on a local machine where PowerShell is running. The attacker could then connect to a PowerShell session and send commands to execute arbitrary code.</p> <p>The update addresses the vulnerability by correcting how PowerShell commands are validated when WDAC protection is enabled.</p>

At a glance

Exploitability

Can be exploited locally on the machine with an admin-level account. High risk of data exposure, data tampering, service disruption.

Exploit odds

6.6% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2020-09-11 17:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 02:47 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 6.6% in the next 30 days (EPSS).
• Severity: 6.7 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2020-09-11 17:15 UTC

Last modified

2026-06-17 02:47 UTC

Exploit probability

6.6% · EPSS, next 30 days

Record status

Modified

Affected

• Microsoft Powershell < 7.0.8
• Microsoft Powershell < 7.1.5
• Microsoft Powershell 7.0.8
• Microsoft Windows 10 1607
• Microsoft Windows 10 1709
• Microsoft Windows 10 1803
• Microsoft Windows 10 1809
• Microsoft Windows 10 1903

Attack profile CVSS 3.1 · 6.7

Attack vector

Local

Complexity

Low

Privileges needed

High

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-0951.md and follow it. Check whether this project is affected by CVE-2020-0951. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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