CVE-2023-20559

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

Insufficient control flow management in AmdCpmGpioInitSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to escalation of privileges.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-691

Affected software

No affected versions have been published.

Timeline

Published: Apr 2, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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