CVE-2023-31364 - CVE House
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Status published High CVE-2023-31364

Improper handling of direct memory writes in the input-output memory...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

AMD EPYC™ 7001 Series Processors, AMD EPYC™ 7002 Series Processors, AMD EPYC™ 7003 Series Processors, AMD EPYC™ 8004 Series Processors, AMD EPYC™ 9004 Series Processors, AMD EPYC™ 9005 Series Processors, AMD EPYC™ Embedded 3000 Series Processors, AMD EPYC™ Embedded 7002 Series Processors, AMD EPYC™ Embedded 7003 Series Processors, AMD EPYC™ Embedded 8004 Series Processors, AMD EPYC™ Embedded 9004 Series Processor, AMD EPYC™ Embedded 9005 Series Processors, AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 3000 Series Desktop Processors, AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics, AMD Ryzen™ 7000 Series Desktop Processors, AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics, AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 8000 Series Desktop Processors, AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors, AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors, AMD Ryzen™ Embedded 5000 Series Processors, AMD Ryzen™ Embedded 7000 Series Processors, AMD Ryzen™ Embedded 8000 Series Processors, AMD Ryzen™ Embedded R1000 Series Processors, AMD Ryzen™ Embedded R2000 Series Processors, AMD Ryzen™ Embedded V1000 Series Processors, AMD Ryzen™ Embedded V2000 Series Processors, AMD Ryzen™ Embedded V3000 Series Processors
Vulnerable Versions:
NaplesPI 1.0.0.R, RomePI 1.0.0.N, MilanPI 1.0.0.H, GenoaPI 1.0.0.G, TurinPI 1.0.0.7, SnowyOwl_SP4_SP4r2.1.1.0.H, EmbRomePI-SP3 1.0.0.F, EmbMilanPI-SP3 v9 1.0.0.C, EmbGenoaPI-SP5 1.0.0.B, EmbTurinPI-SP5 1.0.0.1, No Fix Planned

Timeline

Official Publish: February 26th, 2026
Last Modified: February 27th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-119

MITRE ATT&CK TTPs

T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1203 Exploitation for Client Execution
Execution
T1055 Process Injection
Defense Evasion
T1105 Ingress Tool Transfer
Command and Control