CVE-2021-26384

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

A malformed SMI (System Management Interface) command may allow an attacker to establish a corrupted SMI Trigger Info data structure, potentially leading to out-of-bounds memory reads and writes when triggering an SMI resulting in a potential loss of resources.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-125 CWE-787

Affected software

Vendor	Product	Versions
AMD	Ryzen™ Series	various
AMD	Athlon™ Series	various

References

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

Timeline

Published: Jul 14, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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