CVE-2024-21953

Published Feb 10, 2026 CVSS 4.0 · 5.9 Medium EPSS < 1% KEV · Not listed
Description
Improper input validation in IOMMU could allow a malicious hypervisor to reconfigure IOMMU registers resulting in loss of guest data integrity.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Amd
Amd epyc 8004 Series Processors
Amd epyc 9004 Series Processors
Amd epyc Embedded 9004 Series Processors
Vendors & Products Amd
Amd epyc 8004 Series Processors
Amd epyc 9004 Series Processors
Amd epyc Embedded 9004 Series Processors
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Improper input validation in IOMMU could allow a malicious hypervisor to reconfigure IOMMU registers resulting in loss of guest data integrity.
Weaknesses CWE-1284
References
Metrics cvssV4_0

{'score': 5.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
AMD
Published
Updated
Feb 10, 2026, 9:00 PM
Reserved
Jan 3, 2024, 4:43 PM
Status
Deferred
Published
Feb 10, 2026, 8:16 PM
Modified
Jun 17, 2026, 7:10 AM