MEDIUM 6.5 Microsoft

CVE-2026-69374

Windows SMB Server Denial of Service Vulnerability

Microsoft Security Update 2026-Sep: Windows SMB Server Denial of Service Vulnerability

Affected Products

Windows Server 2022
Windows Server 2022 (Server Core installation)
Windows 10 Version 21H2 for 32-bit Systems
Windows 10 Version 21H2 for ARM64-based Systems
Windows 10 Version 21H2 for x64-based Systems
Windows 10 Version 22H2 for x64-based Systems
Windows 10 Version 22H2 for ARM64-based Systems
Windows 10 Version 22H2 for 32-bit Systems

References

Published: 2026-09-08 · Source: Microsoft · Feed updated: 2026-10-28

This medium severity vulnerability with a CVSS score of 6.5 was published on 2026-09-08 via Microsoft. Affected: Windows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit Systems and 5 more.

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