Missing Authentication in Windows DHCP Server Leads to Privilege Escalation

Publication date: 2026-09-08

Last updated on: 2026-09-24

Assigner: Microsoft Corporation

Description

Missing authentication for critical function in Windows DHCP Server allows an authorized attacker to elevate privileges over a network.

CVSS Scores

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Meta Information

Published

2026-09-08

Last Modified

2026-09-24

Generated

2026-09-29

AI Q&A

2026-09-09

EPSS Evaluated

2026-09-27

NVD

CVE-2026-69415

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
microsoft	windows_server_2025	to 10.0.26100.33438 (exc)
microsoft	windows_10_1607	to 10.0.14393.9512 (exc)
microsoft	windows_10_1607	to 10.0.14393.9512 (exc)
microsoft	windows_10_1809	to 10.0.17763.9245 (exc)
microsoft	windows_10_1809	to 10.0.17763.9245 (exc)
microsoft	windows_server_2016	to 10.0.14393.9512 (exc)
microsoft	windows_server_2019	to 10.0.17763.9245 (exc)
microsoft	windows_server_2022	to 10.0.20348.5622 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-306	The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Attack-Flow Graph

Executive Summary

This vulnerability is a missing authentication issue in the Windows DHCP Server. It allows an authorized attacker to escalate their privileges over a network by exploiting a critical function that should require authentication.

Impact Analysis

An attacker could gain elevated privileges on a system running a vulnerable Windows DHCP Server. This could lead to unauthorized access, control over network services, or further compromise of the affected system.

Mitigation Strategies

Apply the latest security updates from Microsoft for Windows DHCP Server to address the missing authentication issue. Monitor Microsoft's advisory for patches and install them promptly.

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