MEDIUM 5.3 Microsoft

CVE-2023-20585

AMD: CVE-2023-20585 IOMMU Write Buffer Vulnerability

Microsoft Security Update 2026-Apr: AMD: CVE-2023-20585 IOMMU Write Buffer Vulnerability

Affected Products

Windows Server 2025 (Server Core installation)
Windows 11 Version 25H2 for x64-based Systems
Windows 11 Version 24H2 for x64-based Systems
Windows Server 2025

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-20585
https://nvd.nist.gov/vuln/detail/CVE-2023-20585

Published: 2026-04-14 · Source: Microsoft · Feed updated: 2026-08-04

This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-04-14 via Microsoft. Affected: Windows Server 2025 (Server Core installation), Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for x64-based Systems and 1 more.

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