CVE-2025-29952
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Improper Initialization in AMD SEV Firmware Risks Memory Integrity

Publication date: 2026-02-10

Last updated on: 2026-02-10

Assigner: Advanced Micro Devices Inc.

Description
Improper Initialization within the AMD Secure Encrypted Virtualization (SEV) firmware can allow an admin privileged attacker to corrupt RMP covered memory, potentially resulting in loss of guest memory integrity

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Meta Information

Published
2026-02-10
Last Modified
2026-02-10
Generated
2026-07-06
AI Q&A
2026-02-10
EPSS Evaluated
2026-07-05
NVD
CVE-2025-29952
EUVD
EUVD-2025-207139

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
amd secure_encrypted_virtualization *

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-457 The code uses a variable that has not been initialized, leading to unpredictable or unintended results.

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Executive Summary

This vulnerability involves improper initialization within the AMD Secure Encrypted Virtualization (SEV) firmware. It allows an attacker with administrative privileges to corrupt RMP (Reverse Map Table) covered memory. This corruption can potentially lead to a loss of guest memory integrity.

Impact Analysis

The impact of this vulnerability is that an attacker with admin privileges could corrupt memory that is supposed to be protected by the SEV firmware. This corruption can result in the loss of integrity of the guest memory, potentially leading to unauthorized data modification or system instability.

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