MEDIUM 5.5 Microsoft

CVE-2026-44805

Windows Network Controller (NC) Host Agent Denial of Service Vulnerability

Microsoft Security Update 2026-Jun: Windows Network Controller (NC) Host Agent Denial of Service Vulnerability

Affected Products

Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server 2022
Windows Server 2022 (Server Core installation)
Windows Server 2025 (Server Core installation)
Windows Server 2025

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44805
https://nvd.nist.gov/vuln/detail/CVE-2026-44805

Published: 2026-06-09 · Source: Microsoft · Feed updated: 2026-08-04

This medium severity vulnerability with a CVSS score of 5.5 was published on 2026-06-09 via Microsoft. Affected: Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022 and 3 more.

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