CVE-2026-96934

Analyzed Analyzed - Analysis Complete

Use After Free in Windows DHCP Server Allows Remote Code Execution

Publication date: 2026-10-13

Last updated on: 2026-10-16

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-13

Last Modified

2026-10-16

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-96934

EUVD

EUVD-2026-100255

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
microsoft	windows_server_2022	to 10.0.20348.5761 (exc)
microsoft	windows_10_1607	to 10.0.14393.9612 (exc)
microsoft	windows_10_1607	to 10.0.14393.9612 (exc)
microsoft	windows_10_1809	to 10.0.17763.9376 (exc)
microsoft	windows_10_1809	to 10.0.17763.9376 (exc)
microsoft	windows_server_2016	to 10.0.14393.9612 (exc)
microsoft	windows_server_2019	to 10.0.17763.9376 (exc)
microsoft	windows_server_2025	to 10.0.26100.33650 (exc)

Helpful Resources

Exploitability

CWE

KEV

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

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.

Compliance Impact

This vulnerability allows remote code execution via a use-after-free flaw in Windows DHCP Server, which could lead to unauthorized access or data breaches. Such breaches may violate compliance requirements under GDPR (data protection) and HIPAA (health information security) by exposing sensitive data or failing to maintain system integrity.

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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