CVE-2026-58627

Analyzed Analyzed - Analysis Complete

Uncontrolled Resource Consumption in Windows DHCP Server

Publication date: 2026-07-14

Last updated on: 2026-07-17

Assigner: Microsoft Corporation

Description

Uncontrolled resource consumption in Windows DHCP Server allows an unauthorized attacker to deny service over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-14

Last Modified

2026-07-17

Generated

2026-08-04

AI Q&A

2026-07-15

EPSS Evaluated

2026-08-02

NVD

CVE-2026-58627

EUVD

EUVD-2026-44308

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
microsoft	windows_10_1607	to 10.0.14393.9339 (exc)
microsoft	windows_10_1607	to 10.0.14393.9339 (exc)
microsoft	windows_10_1809	to 10.0.17763.9020 (exc)
microsoft	windows_10_1809	to 10.0.17763.9020 (exc)
microsoft	windows_server_2025	to 10.0.26100.33158 (exc)
microsoft	windows_server_2022	to 10.0.20348.5386 (exc)
microsoft	windows_server_2016	to 10.0.14393.9339 (exc)
microsoft	windows_server_2019	to 10.0.17763.9020 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This vulnerability is an uncontrolled resource consumption issue in the Windows DHCP Server. An unauthorized attacker can exploit it to consume excessive resources, leading to a denial of service over the network.

Detection Guidance

Monitor DHCP server logs for unusual traffic patterns or resource spikes. Use Windows Performance Monitor to track DHCP server resource usage. Check for excessive DHCP lease requests or errors in Event Viewer under Windows Logs > System.

Impact Analysis

This vulnerability can allow an attacker to disrupt network services by causing the Windows DHCP Server to consume too many resources, resulting in service outages or degraded performance for connected devices.

Mitigation Strategies

Apply the latest security updates from Microsoft for Windows DHCP Server. Restrict network access to DHCP server ports (UDP 67, 68) if possible. Monitor network traffic for signs of exploitation and disable DHCP server if under attack.

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