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Vulnerability record · CVE-2023-20559 · published 2 April 2023

CVE-2023-20559: Amd ryzen 7 5700g firmware vulnerability

AAmd · Ryzen 7 5700g Firmware

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

8.8 CVSS 3.1 High EPSS 0.67% · top 50.1% CWE-691 · CWE-691
8.8CVSS 3.1 base score
0.67%EPSS exploitation probability, 30 days
NoNot in CISA KEV
89Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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

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

Affected products

89 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-1027.html Vendor Advisory
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-1027.html Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-20559), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.