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    CVE-2026-0421

    A potential vulnerability was reported in the BIOS of L13 Gen 6, L13 Gen 6 2-in-1, L14 Gen 6, and L16 Gen 2 ThinkPads which could result in Secure Boot being disabled even when configured as “On” in the BIOS setup menu. This issue only affects systems where Secure Boot is set to User Mode.

    Published:Jan 14, 2026
    Last Modified:Apr 18, 2026
    EPS:Jan 14, 2026
    EPSS Score:0.00016
    CVSS Score:6.5

    Affected Products

    Vendor
    Lenovo
    Product
    Thinkpad L13 Gen 6 2 In 1 Bios
    Vendor
    Lenovo
    Product
    Thinkpad L13 Gen 6 Bios
    Vendor
    Lenovo
    Product
    Thinkpad L14 Gen 6 Bios
    Vendor
    Lenovo
    Product
    Thinkpad L16 Gen 2 Bios

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-252 Unchecked Return Value

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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