What is the CVSS score of CVE-2024-20657?

CVE-2024-20657 has a CVSS 3.1 base score of 7.0 (High). CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Which versions of Windows are affected by CVE-2024-20657?

CVE-2024-20657 presents moderate security risk, a improper access control vulnerability rated CVSS 7.0. Exploitation could compromise the security of affected deployments.. A patch is available.

How to fix or mitigate CVE-2024-20657?

Within 30 days: Identify all affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Windows CVE-2024-20657

HIGH

Improper Access Control (CWE-284)

2024-01-09 secure@microsoft.com

Windows Authentication Bypass Microsoft Windows 10 1507 Windows 10 1607 Windows 10 1809 Windows 10 21h2 Windows 10 22h2 Windows 11 22h2 Windows 11 23h2 Windows Server 2008 Windows Server 2012 Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows 11 21H2

7.0

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:34 vuln.today

Patch released

Mar 28, 2026 - 19:34 nvd

Patch available

CVE Published

Jan 09, 2024 - 18:15 nvd

HIGH 7.0

DescriptionNVD

Windows Group Policy Elevation of Privilege Vulnerability

AnalysisAI

Windows Group Policy Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0).

Technical ContextAI

This vulnerability is classified under CWE-284. Affected products include: Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21H2, Microsoft Windows 10 22H2.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2024-20657 vulnerability details – vuln.today

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Windows CVE-2024-20657

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code