CVE-2023-31304

Availability loss via unvalidated PCIe lane settings

Published Aug 13, 2024 · Updated Nov 4, 2024

Improper input validation in AMD Radeon RX 6000 and PRO W6000 SMU firmware allows local users to cause availability loss through PCIe changes. The SMU accepts lane-count and lane-speed changes from a compromised PCIe physical function without adequately validating the specified quantities. Administrative privileges and control of a compromised physical function are required, and the published consequence is limited to availability.

CVSS severity2.3
Low
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in AMD Radeon RX 6000 and PRO W6000 SMU firmware allows local users to cause availability loss through PCIe changes. The SMU accepts lane-count and lane-speed changes from a compromised PCIe physical function without adequately validating the specified quantities. Administrative privileges and control of a compromised physical function are required, and the published consequence is limited to availability.

The record

CVE
CVE-2023-31304
Published
Aug 13, 2024
Updated
Nov 4, 2024
Vendor
Advanced Micro Devices, Inc.
Product
AMD Radeon PRO W6000 Series Graphics
Classifications
CWE-1284, T1499
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Advanced Micro Devices, Inc. · AMD Radeon PRO W6000 Series GraphicsAffected versions are unavailable in this record.
Advanced Micro Devices, Inc. · AMD Radeon RX 6000 Series GraphicsAffected versions are unavailable in this record.

Published CVSS scores

2.3Advanced Micro Devices, Inc.CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1284Improper Validation of Specified Quantity in Input
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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