CVE-2023-31364: AMD Athlon 3000 Series Mobile Processors With Radeon Graphics

High severity, CVSS 8.3. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• AMD AMD Athlon 3000 Series Mobile Processors With Radeon Graphics
• AMD AMD Epyc 7001 Series Processors
• AMD AMD Epyc 7002 Series Processors
• AMD AMD Epyc 7003 Series Processors
• AMD AMD Epyc 8004 Series Processors
• AMD AMD Epyc 9004 Series Processors
• AMD AMD Epyc 9005 Series Processors
• AMD AMD Epyc Embedded 3000 Series Processors
• AMD AMD Epyc Embedded 7002 Series Processors
• AMD AMD Epyc Embedded 7003 Series Processors
• AMD AMD Epyc Embedded 8004 Series Processors
• AMD AMD Epyc Embedded 9004 Series Processor
• AMD AMD Epyc Embedded 9005 Series Processors
• AMD AMD Ryzen 3000 Series Desktop Processors
• AMD AMD Ryzen 3000 Series Mobile Processors With Radeon Graphics
• AMD AMD Ryzen 4000 Series Mobile Processors With Radeon Graphics
• AMD AMD Ryzen 5000 Series Mobile Processors With Radeon Graphics
• AMD AMD Ryzen 6000 Series Processors With Radeon Graphics
• AMD AMD Ryzen 7000 Series Desktop Processors
• AMD AMD Ryzen 7020 Series Processors With Radeon Graphics
• AMD AMD Ryzen 7040 Series Mobile Processors With Radeon Graphics
• AMD AMD Ryzen 7045 Series Mobile Processors With Radeon Graphics
• AMD AMD Ryzen 8000 Series Desktop Processors
• AMD AMD Ryzen Embedded 5000 Series Processors
• AMD AMD Ryzen Embedded 7000 Series Processors
• and 8 more

Published 2026-02-26. Last modified 2026-06-17.