CVE-2021-26379

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

Insufficient input validation of mailbox data in the SMU may allow an attacker to coerce the SMU to corrupt SMRAM, potentially leading to a loss of integrity and privilege escalation.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

No affected versions have been published.

Timeline

Published
May 9, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-26379: Critical severity, CVSS 9.8 | Vulnix