CVE-2026-44805

Analyzed Analyzed - Analysis Complete

Use After Free in Windows Network Controller Host Agent

Publication date: 2026-06-09

Last updated on: 2026-06-11

Assigner: Microsoft Corporation

Description

Use after free in Windows Network Controller (NC) Host Agent allows an authorized attacker to deny service locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-06-09

Last Modified

2026-06-11

Generated

2026-06-30

AI Q&A

2026-06-09

EPSS Evaluated

2026-06-28

NVD

CVE-2026-44805

EUVD

EUVD-2026-35746

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2019	to 10.0.17763.8880 (exc)
microsoft	windows_server_2022	to 10.0.20348.5256 (exc)
microsoft	windows_server_2025	to 10.0.26100.32995 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-822	The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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 vulnerability is a use-after-free issue in the Windows Network Controller (NC) Host Agent. It allows an authorized attacker to cause a denial of service on the affected system locally.

Impact Analysis

The impact of this vulnerability is a denial of service (DoS) condition. An authorized attacker can exploit this flaw to disrupt the normal operation of the Windows Network Controller Host Agent, potentially causing system instability or service interruption.

Compliance Impact

The provided information does not specify how this vulnerability affects compliance with common standards and regulations such as GDPR or HIPAA.

Mitigation Strategies

This vulnerability allows an authorized attacker to cause a denial of service locally via a use after free in the Windows Network Controller (NC) Host Agent.

To mitigate this vulnerability, ensure that all relevant security updates and patches provided by Microsoft for the Windows Network Controller Host Agent are applied promptly.

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