Vulnerability Intelligence Report
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.
No Active Exploit Signals
CVSS Base Score
8.3
HIGH
EPSS Probability:0.25%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-119 ↗CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| AMD | AMD EPYC™ 7001 Series Processors | NaplesPI 1.0.0.R (unaffected) |
| AMD | AMD EPYC™ 7002 Series Processors | RomePI 1.0.0.N (unaffected) |
| AMD | AMD EPYC™ 7003 Series Processors | MilanPI 1.0.0.H (unaffected) |
| AMD | AMD EPYC™ 8004 Series Processors | GenoaPI 1.0.0.G (unaffected) |
| AMD | AMD EPYC™ 9004 Series Processors | GenoaPI 1.0.0.G (unaffected) |
| AMD | AMD EPYC™ 9005 Series Processors | TurinPI 1.0.0.7 (unaffected) |
| AMD | AMD EPYC™ Embedded 3000 Series Processors | SnowyOwl_SP4_SP4r2.1.1.0.H (unaffected) |
| AMD | AMD EPYC™ Embedded 7002 Series Processors | EmbRomePI-SP3 1.0.0.F (unaffected) |
| AMD | AMD EPYC™ Embedded 7003 Series Processors | EmbMilanPI-SP3 v9 1.0.0.C (unaffected) |
| AMD | AMD EPYC™ Embedded 8004 Series Processors | EmbGenoaPI-SP5 1.0.0.B (affected) |
| AMD | AMD EPYC™ Embedded 9004 Series Processor | EmbGenoaPI-SP5 1.0.0.B (affected) |
| AMD | AMD EPYC™ Embedded 9005 Series Processors | EmbTurinPI-SP5 1.0.0.1 (unaffected) |
| AMD | AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics | No Fix Planned (affected) |
| AMD | AMD Ryzen™ 3000 Series Desktop Processors | No Fix Planned (affected) |
| AMD | AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics | No Fix Planned (affected) |
| AMD | AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics | No Fix Planned (affected) |
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | No Fix Planned (affected) |
| AMD | AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics | No Fix Planned (affected) |
| AMD | AMD Ryzen™ 7000 Series Desktop Processors | No Fix Planned (affected) |
| AMD | AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics | No Fix Planned (affected) |
| AMD | AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics | No Fix Planned (affected) |
| AMD | AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics | No Fix Planned (affected) |
| AMD | AMD Ryzen™ 8000 Series Desktop Processors | No Fix Planned (affected) |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors | No Fix Planned (affected) |
| AMD | AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors | No Fix Planned (affected) |
| AMD | AMD Ryzen™ Embedded 5000 Series Processors | No Fix Planned (affected) |
| AMD | AMD Ryzen™ Embedded 7000 Series Processors | No Fix Planned (affected) |
| AMD | AMD Ryzen™ Embedded 8000 Series Processors | No Fix Planned (affected) |
| AMD | AMD Ryzen™ Embedded R1000 Series Processors | No Fix Planned (affected) |
| AMD | AMD Ryzen™ Embedded R2000 Series Processors | No Fix Planned (affected) |
| AMD | AMD Ryzen™ Embedded V1000 Series Processors | No Fix Planned (affected) |
| AMD | AMD Ryzen™ Embedded V2000 Series Processors | No Fix Planned (affected) |
| AMD | AMD Ryzen™ Embedded V3000 Series Processors | No Fix Planned (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.247%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Advanced Micro Devices Inc. · Vendor · USA |
| Reserved | 2023-04-27T15:25:41 |
| Published | 2026-02-26T20:33:28 |
| Last Updated | 2026-02-27T19:06:16 |
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