CVE-2023-31364
High
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.
SeverityHigh
CVSS8.3
Exploit probability—
ProductAMD EPYC™ 7001 Series Processors
PublishedFeb 26, 2026
First seenFeb 26, 2026
Weakness typeCWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| AMD AMD EPYC™ 7001 Series Processors | No range specified | — |
| AMD AMD EPYC™ 7002 Series Processors | No range specified | — |
| AMD AMD EPYC™ 7003 Series Processors | No range specified | — |
| AMD AMD EPYC™ 8004 Series Processors | No range specified | — |
| AMD AMD EPYC™ 9004 Series Processors | No range specified | — |
| AMD AMD EPYC™ 9005 Series Processors | No range specified | — |
| AMD AMD EPYC™ Embedded 3000 Series Processors | No range specified | — |
| AMD AMD EPYC™ Embedded 7002 Series Processors | No range specified | — |
| AMD AMD EPYC™ Embedded 7003 Series Processors | No range specified | — |
| AMD AMD EPYC™ Embedded 8004 Series Processors | EmbGenoaPI-SP5 1.0.0.B | — |
| AMD AMD EPYC™ Embedded 9004 Series Processor | EmbGenoaPI-SP5 1.0.0.B | — |
| AMD AMD EPYC™ Embedded 9005 Series Processors | No range specified | — |
| AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics | No Fix Planned | — |
| AMD AMD Ryzen™ 3000 Series Desktop Processors | No Fix Planned | — |
| AMD AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics | No Fix Planned | — |
| AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics | No Fix Planned | — |
| AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | No Fix Planned | — |
| AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics | No Fix Planned | — |
| AMD AMD Ryzen™ 7000 Series Desktop Processors | No Fix Planned | — |
| AMD AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics | No Fix Planned | — |
| AMD AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics | No Fix Planned | — |
| AMD AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics | No Fix Planned | — |
| AMD AMD Ryzen™ 8000 Series Desktop Processors | No Fix Planned | — |
| AMD AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors | No Fix Planned | — |
| AMD AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors | No Fix Planned | — |
| AMD AMD Ryzen™ Embedded 5000 Series Processors | No Fix Planned | — |
| AMD AMD Ryzen™ Embedded 7000 Series Processors | No Fix Planned | — |
| AMD AMD Ryzen™ Embedded 8000 Series Processors | No Fix Planned | — |
| AMD AMD Ryzen™ Embedded R1000 Series Processors | No Fix Planned | — |
| AMD AMD Ryzen™ Embedded R2000 Series Processors | No Fix Planned | — |
| AMD AMD Ryzen™ Embedded V1000 Series Processors | No Fix Planned | — |
| AMD AMD Ryzen™ Embedded V2000 Series Processors | No Fix Planned | — |
| AMD AMD Ryzen™ Embedded V3000 Series Processors | No Fix Planned | — |
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