CVE-2026-0421
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I. Basic Information for CVE-2026-0421
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加检查的返回值
Source: NVD (National Vulnerability Database)
Vulnerability Title
Lenovo ThinkPad BIOS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lenovo ThinkPad BIOS是中国联想（Lenovo）公司的一款笔记本启动系统的程序。 Lenovo ThinkPad BIOS存在安全漏洞，该漏洞源于BIOS中安全启动配置验证不当，可能导致安全启动被禁用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Lenovo | ThinkPad L13 Gen 6 BIOS | 0 ~ 1.10 | - | |
| Lenovo | ThinkPad L13 Gen 6 2 in 1 BIOS | 0 ~ 1.10 | - | |
| Lenovo | ThinkPad L14 Gen 6 BIOS | 0 ~ 1.06 | - | |
| Lenovo | ThinkPad L16 Gen 2 BIOS | 0 ~ 1.06 | - |
II. Public POCs for CVE-2026-0421
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Same Patch Batch · Lenovo · 2026-01-14 · 6 CVEs total
| CVE-2025-13455 | 7.8 HIGH | Lenovo多款产品 安全漏洞 |
| CVE-2025-13454 | 5.5 MEDIUM | Lenovo多款产品 安全漏洞 |
| CVE-2025-13154 | 5.5 MEDIUM | Lenovo Vantage 安全漏洞 |
| CVE-2025-13453 | 4.6 MEDIUM | Lenovo ThinkPlus 安全漏洞 |
| CVE-2025-14058 | 3.2 LOW | Lenovo Tablets 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-0421
Anonymous User
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