CVE-2023-31308
Received Received - Intake

Denial of Service in AMD SMU via Virtual Function

Vulnerability report for CVE-2023-31308, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-31

Last updated on: 2026-08-31

Assigner: Advanced Micro Devices Inc.

Description

A malicious virtual function can invoke the certain command handlers in the SMU, causing a denial of service due to out-of-bounds memory read.

CVSS Scores

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Meta Information

Published
2026-08-31
Last Modified
2026-08-31
Generated
2026-08-31
AI Q&A
2026-08-31
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-129 The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

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Executive Summary

This vulnerability involves a malicious virtual function triggering specific command handlers in the SMU, leading to an out-of-bounds memory read. This can cause a denial of service by crashing the system or making it unstable.

Impact Analysis

The impact includes system crashes or instability due to memory corruption. An attacker could exploit this to disrupt services or cause unexpected behavior on affected systems.

Compliance Impact

The provided CVE data does not specify direct impacts on compliance with standards like GDPR or HIPAA. The vulnerability primarily causes a denial of service due to out-of-bounds memory read, which may affect system availability but lacks explicit details on data confidentiality or integrity risks required for compliance assessments.

Mitigation Strategies

Apply the latest firmware updates from AMD to patch the SMU command handler vulnerability. Monitor AMD security advisories for patches and disable unnecessary virtual functions if possible.

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