CVE-2025-52534
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Improper Bound Check in AMD CPU Microcode Enables Host Memory Write

Publication date: 2026-02-10

Last updated on: 2026-02-10

Assigner: Advanced Micro Devices Inc.

Description
Improper bound check within AMD CPU microcode can allow a malicious guest to write to host memory, potentially resulting in loss of integrity.

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Meta Information

Published
2026-02-10
Last Modified
2026-02-10
Generated
2026-07-07
AI Q&A
2026-02-10
EPSS Evaluated
2026-07-06
NVD
CVE-2025-52534
EUVD
EUVD-2025-207435

Affected Vendors & Products

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

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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 is caused by an improper bound check within AMD CPU microcode. It allows a malicious guest (such as a virtual machine or untrusted code running on the CPU) to write to the host memory. This means that the isolation between guest and host memory can be bypassed, potentially leading to unauthorized memory modification.

Impact Analysis

The vulnerability can impact you by allowing a malicious guest to write to host memory, which can result in a loss of integrity of the host system. This could lead to unauthorized changes in memory, potentially compromising the security and stability of the host environment.

Compliance Impact

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