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.
Published: 2022-01-03
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4207-1 edk2 security update
EUVD EUVD EUVD-2021-25018 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.
History

Mon, 03 Nov 2025 20:30:00 +0000

Type Values Removed Values Added
References

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00252}

epss

{'score': 0.00215}


cve-icon MITRE

Status: PUBLISHED

Assigner: TianoCore

Published:

Updated: 2025-11-03T19:26:14.574Z

Reserved: 2021-08-11T00:00:00.000Z

Link: CVE-2021-38576

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-01-03T22:15:09.903

Modified: 2025-11-03T20:15:49.640

Link: CVE-2021-38576

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses