CVE-2025-29946
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BaseFortify

Publication date: 2026-02-10

Last updated on: 2026-02-10

Assigner: Advanced Micro Devices Inc.

Description
Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush IOMMU. This can potentially lead to a loss of confidentiality and integrity in guest memory.
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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
2026-06-14
NVD
CVE-2025-29946
EUVD
EUVD-2025-207134
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
amd epyc From 1.37.2A (inc) to 1.37.31 (inc)
amd genoa *
amd embedded_9004 *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-1301 The product's data removal process does not completely delete all data and potentially sensitive information within hardware components.
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Executive Summary

This vulnerability involves insufficient or incomplete data removal in a hardware component within the SEV firmware. Specifically, the firmware does not fully flush the IOMMU (Input-Output Memory Management Unit), which is responsible for managing memory access. As a result, sensitive data in guest memory may not be properly cleared.

Because the IOMMU is not fully flushed, there is a risk that confidential or integrity-sensitive information could be exposed or compromised.

Impact Analysis

This vulnerability can lead to a loss of confidentiality and integrity in guest memory. In practical terms, this means that sensitive data stored in virtualized environments using SEV firmware could potentially be accessed or tampered with by unauthorized parties.

Such exposure could result in data breaches, unauthorized data disclosure, or manipulation of critical information within the affected systems.

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