What’s Vulnerable › Vulnerabilities

CVE-2021-27066: Windows Admin Center Security Feature Bypass Vulnerability

• Severity: medium (CVSS 4.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-11 · updated 2026-08-19

Description

Windows Admin Center Security Feature Bypass Vulnerability

Affected products

• Microsoft Windows Admin Center: all versions
• Microsoft Windows Admin Center: from 1809.0 before publication — fixed in publication

How to fix

Upgrade to a fixed version: Microsoft Windows Admin Center publication. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27066
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27066

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