What is the CVSS score of CVE-2025-21379?

CVE-2025-21379 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.0%.

Which versions of Windows 11 24h2 are affected by CVE-2025-21379?

CVE-2025-21379 presents moderate security risk, a use-after-free vulnerability rated CVSS 7.1. Exploitation could compromise the security of affected deployments.. A patch is available.

How to fix or mitigate CVE-2025-21379?

Within 7 days: Identify all affected systems and apply vendor patches promptly. If patching is delayed, consider network segmentation to limit exposure.

Windows 11 24h2 CVE-2025-21379

HIGH

Use After Free (CWE-416)

2025-02-11 secure@microsoft.com

Use After Free Memory Corruption RCE Windows 11 24h2 Windows Server 2025 Microsoft

7.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.1 HIGH

AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:26 vuln.today

Patch released

Mar 28, 2026 - 18:26 nvd

Patch available

CVE Published

Feb 11, 2025 - 18:15 nvd

HIGH 7.1

DescriptionCVE.org

DHCP Client Service Remote Code Execution Vulnerability

AnalysisAI

DHCP Client Service Remote Code Execution Vulnerability. Rated high severity (CVSS 7.1), this vulnerability is no authentication required. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Technical ContextAI

This vulnerability is classified as Use After Free (CWE-416), which allows attackers to access freed memory to execute arbitrary code or crash the application. Affected products include: Microsoft Windows 11 24H2, Microsoft Windows Server 2025.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Use smart pointers or garbage-collected languages. Set pointers to NULL after freeing. Enable memory sanitizers.

CVE-2025-21379 vulnerability details – vuln.today

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Windows 11 24h2 CVE-2025-21379

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code