CVE-2021-38576

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CVSS 3.1

7.5 high

EPSS

1%p65

Published

Jan 3, 2022 (Jan 3, 2022)

Modified

Jun 17, 2026

Description

A BIOS bug in firmware for a particular PC model leaves the Platform authorization value empty. This can be used to permanently brick the TPM in multiple ways, as well as to non-permanently DoS the system.

Vendors: tianocore
Products: edk2
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (1.2%)

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