CVE-2026-96934
Undergoing Analysis Undergoing Analysis - In Progress

Use After Free in Windows DHCP Server Allows Remote Code Execution

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Microsoft Corporation

Description
Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-14
AI Q&A
2026-10-14
EPSS Evaluated
N/A
NVD
CVE-2026-96934
EUVD
EUVD-2026-100255

Affected Vendors & Products

Showing 13 associated CPEs
Vendor Product Version / Range
Microsoft Windows 10 Version 1607 10.0.14393.0
Microsoft Windows 10 Version 1809 10.0.17763.0
Microsoft Windows Server 2012 6.2.9200.0
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0
Microsoft Windows Server 2012 R2 6.3.9600.0
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0
Microsoft Windows Server 2016 10.0.14393.0
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0
Microsoft Windows Server 2019 10.0.17763.0
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0
Microsoft Windows Server 2022 10.0.20348.0
Microsoft Windows Server 2025 10.0.26100.0
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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Executive Summary

This is a use after free vulnerability in the Windows DHCP Server. It allows an unauthorized attacker to execute arbitrary code over a network by exploiting a memory corruption issue where freed memory is accessed again.

Impact Analysis

An attacker could remotely execute malicious code on affected systems, potentially leading to full system compromise, data theft, or denial of service. Systems running vulnerable Windows versions are at risk.

Mitigation Strategies

Apply the latest security updates from Microsoft for Windows DHCP Server. Disable DHCP Server service if not in use. Monitor network traffic for unusual activity related to DHCP requests.

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