CVE-2024-21953
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Improper Input Validation in AMD IOMMU Risks Guest Data Integrity

Publication date: 2026-02-10

Last updated on: 2026-02-10

Assigner: Advanced Micro Devices Inc.

Description
Improper input validation in IOMMU could allow a malicious hypervisor to reconfigure IOMMU registers resulting in loss of guest data integrity.
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Meta Information
Published
2026-02-10
Last Modified
2026-02-10
Generated
2026-06-16
AI Q&A
2026-02-10
EPSS Evaluated
2026-06-15
NVD
CVE-2024-21953
EUVD
EUVD-2024-19559
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
amd epyc From 1.37.2A (inc) to 1.37.31 (inc)
amd epyc From 1.0.0.F (inc) to 1.0.0.G (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-1284 The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.
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Executive Summary

This vulnerability involves improper input validation in the IOMMU (Input-Output Memory Management Unit). It allows a malicious hypervisor to reconfigure IOMMU registers, which can lead to a loss of guest data integrity.

Impact Analysis

The impact of this vulnerability is that a malicious hypervisor could manipulate IOMMU registers, potentially causing loss of data integrity within guest systems. This could compromise the reliability and correctness of data processed or stored by affected guests.

Compliance Impact

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