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Vulnerability Details :

CVE-2026-0421

Summary
Assigner-lenovo
Assigner Org ID-da227ddf-6e25-4b41-b023-0f976dcaca4b
Published At-14 Jan, 2026 | 22:18
Updated At-16 Jan, 2026 | 04:55
Rejected At-
Credits

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:lenovo
Assigner Org ID:da227ddf-6e25-4b41-b023-0f976dcaca4b
Published At:14 Jan, 2026 | 22:18
Updated At:16 Jan, 2026 | 04:55
Rejected At:
▼CVE Numbering Authority (CNA)

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.

Affected Products
Vendor
Lenovo Group LimitedLenovo
Product
ThinkPad L13 Gen 6 BIOS
Default Status
unaffected
Versions
Affected
  • From 0 before 1.10 (custom)
Vendor
Lenovo Group LimitedLenovo
Product
ThinkPad L13 Gen 6 2 in 1 BIOS
Default Status
unaffected
Versions
Affected
  • From 0 before 1.10 (custom)
Vendor
Lenovo Group LimitedLenovo
Product
ThinkPad L14 Gen 6 BIOS
Default Status
unaffected
Versions
Affected
  • From 0 before 1.06 (custom)
Vendor
Lenovo Group LimitedLenovo
Product
ThinkPad L16 Gen 2 BIOS
Default Status
unaffected
Versions
Affected
  • From 0 before 1.06 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-252CWE-252: Unchecked Return Value
Type: CWE
CWE ID: CWE-252
Description: CWE-252: Unchecked Return Value
Metrics
VersionBase scoreBase severityVector
4.07.0HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
3.16.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Version: 4.0
Base score: 7.0
Base severity: HIGH
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Update to the version (or higher) as recommended in the Product Impact section in the advisory:  https://support.lenovo.com/us/en/product_security/LEN-210688

Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://support.lenovo.com/us/en/product_security/LEN-210688
N/A
Hyperlink: https://support.lenovo.com/us/en/product_security/LEN-210688
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:psirt@lenovo.com
Published At:14 Jan, 2026 | 23:15
Updated At:16 Jan, 2026 | 15:55

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.07.0HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary3.16.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Type: Secondary
Version: 4.0
Base score: 7.0
Base severity: HIGH
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Primary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-252Secondarypsirt@lenovo.com
CWE ID: CWE-252
Type: Secondary
Source: psirt@lenovo.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://support.lenovo.com/us/en/product_security/LEN-210688psirt@lenovo.com
N/A
Hyperlink: https://support.lenovo.com/us/en/product_security/LEN-210688
Source: psirt@lenovo.com
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

1Records found
CVE-2019-6173
Matching Score-8
Assigner-Lenovo Group Ltd.
ShareView Details
Matching Score-8
Assigner-Lenovo Group Ltd.
CVSS Score-6.7||MEDIUM
EPSS-0.04% / 12.09%
||
7 Day CHG~0.00%
Published-09 Jun, 2020 | 19:50
Updated-16 Sep, 2024 | 17:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A DLL search path vulnerability could allow privilege escalation in some Lenovo installation packages, prior to version 1.2.9.3, during installation if an attacker already has administrative privileges.

Action-Not Available
Vendor-Lenovo Group Limited
Product-installation_packageInstallation Packages
CWE ID-CWE-426
Untrusted Search Path
Details not found