What’s Vulnerable › Vulnerabilities

CVE-2020-0621

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-01-14 · updated 2026-06-17
• Weakness: CWE-613

Description

A security feature bypass vulnerability exists in Windows 10 when third party filters are called during a password update, aka 'Windows Security Feature Bypass Vulnerability'.

Affected products

• Microsoft Windows 10 Version 1607: 1709, 1803, 1809
• Microsoft Windows Server 2016: 1803
• Microsoft Windows Server 2019: all versions
• Microsoft Corporation Windows: 10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems, 10 Version 1809 for 32-bit Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for ARM64-based Systems (+3)
• Microsoft Windows Server: version 1803 (Core Installation), 2019, 2019 (Core installation)

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0621
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0621

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