CVE-2023-31364

State: Published
Severity: 8.3 High
Published: Feb 26, 2026
Updated: Feb 27, 2026
Reserved: Apr 27, 2023

Description

Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine (VM) to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service.

Scores

CVSS	Score	Vector	Source
4.0	8.3 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H	AMD

Weaknesses

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

Affected Products

Product	Versions
AMD EPYC™ 7001 Series ProcessorsAMD	NaplesPI 1.0.0.RNot affected
AMD EPYC™ 7002 Series ProcessorsAMD	RomePI 1.0.0.NNot affected
AMD EPYC™ 7003 Series ProcessorsAMD	MilanPI 1.0.0.HNot affected
AMD EPYC™ 8004 Series ProcessorsAMD	GenoaPI 1.0.0.GNot affected
AMD EPYC™ 9004 Series ProcessorsAMD	GenoaPI 1.0.0.GNot affected
AMD EPYC™ 9005 Series ProcessorsAMD	TurinPI 1.0.0.7Not affected
AMD EPYC™ Embedded 3000 Series ProcessorsAMD	SnowyOwl_SP4_SP4r2.1.1.0.HNot affected
AMD EPYC™ Embedded 7002 Series ProcessorsAMD	EmbRomePI-SP3 1.0.0.FNot affected
AMD EPYC™ Embedded 7003 Series ProcessorsAMD	EmbMilanPI-SP3 v9 1.0.0.CNot affected
AMD EPYC™ Embedded 8004 Series ProcessorsAMD	EmbGenoaPI-SP5 1.0.0.BAffected
AMD EPYC™ Embedded 9004 Series ProcessorAMD	EmbGenoaPI-SP5 1.0.0.BAffected
AMD EPYC™ Embedded 9005 Series ProcessorsAMD	EmbTurinPI-SP5 1.0.0.1Not affected
AMD Athlon™ 3000 Series Mobile Processors with Radeon™ GraphicsAMD	No Fix PlannedAffected
AMD Ryzen™ 3000 Series Desktop ProcessorsAMD	No Fix PlannedAffected
AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ GraphicsAMD	No Fix PlannedAffected
AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ GraphicsAMD	No Fix PlannedAffected
AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ GraphicsAMD	No Fix PlannedAffected
AMD Ryzen™ 6000 Series Processors with Radeon™ GraphicsAMD	No Fix PlannedAffected
AMD Ryzen™ 7000 Series Desktop ProcessorsAMD	No Fix PlannedAffected
AMD Ryzen™ 7020 Series Processors with Radeon™ GraphicsAMD	No Fix PlannedAffected
AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ GraphicsAMD	No Fix PlannedAffected
AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ GraphicsAMD	No Fix PlannedAffected
AMD Ryzen™ 8000 Series Desktop ProcessorsAMD	No Fix PlannedAffected
AMD Ryzen™ Threadripper™ PRO 3000 WX-Series ProcessorsAMD	No Fix PlannedAffected
AMD Ryzen™ Threadripper™ PRO 5000 WX-Series ProcessorsAMD	No Fix PlannedAffected
AMD Ryzen™ Embedded 5000 Series ProcessorsAMD	No Fix PlannedAffected
AMD Ryzen™ Embedded 7000 Series ProcessorsAMD	No Fix PlannedAffected
AMD Ryzen™ Embedded 8000 Series ProcessorsAMD	No Fix PlannedAffected
AMD Ryzen™ Embedded R1000 Series ProcessorsAMD	No Fix PlannedAffected
AMD Ryzen™ Embedded R2000 Series ProcessorsAMD	No Fix PlannedAffected
AMD Ryzen™ Embedded V1000 Series ProcessorsAMD	No Fix PlannedAffected
AMD Ryzen™ Embedded V2000 Series ProcessorsAMD	No Fix PlannedAffected
AMD Ryzen™ Embedded V3000 Series ProcessorsAMD	No Fix PlannedAffected

References

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7059.html

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