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    CVE-2023-31364

    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.

    Published:Feb 26, 2026
    Last Modified:Apr 15, 2026
    EPS:Feb 26, 2026
    EPSS Score:0.00054
    CVSS Score:8.3

    Affected Products

    Vendor
    Amd
    Product
    Athlon 3000 Series Mobile Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Epyc 7001 Series Processors
    Vendor
    Amd
    Product
    Epyc 7002 Series Processors
    Vendor
    Amd
    Product
    Epyc 7003 Series Processors
    Vendor
    Amd
    Product
    Epyc 8004 Series Processors
    Vendor
    Amd
    Product
    Epyc 9004 Series Processors
    Vendor
    Amd
    Product
    Epyc 9005 Series Processors
    Vendor
    Amd
    Product
    Epyc Embedded 3000 Series Processors
    Vendor
    Amd
    Product
    Epyc Embedded 7002 Series Processors
    Vendor
    Amd
    Product
    Epyc Embedded 7003 Series Processors
    Vendor
    Amd
    Product
    Epyc Embedded 8004 Series Processors
    Vendor
    Amd
    Product
    Epyc Embedded 9004 Series Processors
    Vendor
    Amd
    Product
    Epyc Embedded 9005 Series Processors
    Vendor
    Amd
    Product
    Ryzen 3000 Series Mobile Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Ryzen 4000 Series Desktop Processors
    Vendor
    Amd
    Product
    Ryzen 4000 Series Mobile Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Ryzen 5000 Series Mobile Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Ryzen 6000 Series Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Ryzen 7000 Series Desktop Processors
    Vendor
    Amd
    Product
    Ryzen 7020 Series Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Ryzen 7040 Series Mobile Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Ryzen 7045 Series Mobile Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Ryzen 8000 Series Desktop Processors
    Vendor
    Amd
    Product
    Ryzen Embedded 5000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Embedded 7000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Embedded 8000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Embedded R1000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Embedded R2000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Embedded V1000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Embedded V2000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Embedded V3000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 3000 Wx-series Processors
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 5000 Wx-series Processors

    Exploits

    No exploit reference

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High