CVE-2024-21953
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
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| 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) |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know