CVE-2021-38576

    Dashboard / Vulnerabilities / CVE-2021-38576

    CVE-2021-38576

    Published: 3 Jan 2022Last Modified: 8 Jul 2026

    Summary:

    Details: 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.

    References: https://lists.debian.org/debian-lts-announce/2025/06/msg00007.html, https://bugzilla.tianocore.org/show_bug.cgi?id=3499

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- cb5f4f45ce1fca390b99dae5c42b9c4c8b53deea
    Fixed -None

    Affected versions

    201808

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-38576 | CVE-DB