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CVE-2023-20564

hw: amd: RyzenTM Master allow memory reads/writes potentially leading to confidentiality threat

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Severity

Important

Red Hat Product Security

8.2

CVSS 3.1

Review impact separately from score.

Published · August 8, 2023

Updated · November 22, 2025

Description

Insufficient validation in the IOCTL (Input Output Control) input buffer in AMD RyzenTM Master may permit a privileged attacker to perform memory reads and writes, potentially leading to a loss of confidentiality or arbitrary kernel execution.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Please contact AMD support for updates.

CVSS / CWE

CVSS 3.1 · 8.2
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CWE not specified