CVE-2024-21953: AMD Epyc 8004 Series Processors

Medium severity, CVSS 5.9. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper input validation in IOMMU could allow a malicious hypervisor to reconfigure IOMMU registers resulting in loss of guest data integrity.

Affected products

• AMD AMD Epyc 8004 Series Processors
• AMD AMD Epyc 9004 Series Processors
• AMD AMD Epyc Embedded 9004 Series Processors

Published 2026-02-10. Last modified 2026-06-17.