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CVE-2022-4575

Quick assessment

Affected
Lenovo ThinkPad BIOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Lenovo ThinkPad是中国联想（Lenovo）公司的一个便携式计算机。 Lenovo ThinkPad 存在安全漏洞，该漏洞源于UEFI 变量写保护不当，可能允许具有物理或本地访问权限和提升权限的攻击者绕过安全启动。

CVSS 6.7 · Medium EPSS 0.18% · P7
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I. Basic Information for CVE-2022-4575

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability due to improper write protection of UEFI variables was reported in the BIOS of some ThinkPad models could allow an attacker with physical or local access and elevated privileges the ability to bypass Secure Boot.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Lenovo ThinkPad 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lenovo ThinkPad是中国联想（Lenovo）公司的一个便携式计算机。 Lenovo ThinkPad 存在安全漏洞，该漏洞源于UEFI 变量写保护不当，可能允许具有物理或本地访问权限和提升权限的攻击者绕过安全启动。
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 BIOS various -

II. Public POCs for CVE-2022-4575

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III. Intelligence Information for CVE-2022-4575

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Vendor Advisories for CVE-2022-4575 (1)

Same Patch Batch · Lenovo · 2023-10-30 · 4 CVEs total

CVE-2022-48189 6.7 MEDIUM Lenovo ThinkPad 输入验证错误漏洞
CVE-2022-4574 6.7 MEDIUM Lenovo ThinkPad 输入验证错误漏洞
CVE-2022-4573 6.7 MEDIUM Lenovo ThinkPad 输入验证错误漏洞

IV. Related Vulnerabilities

Same product: ThinkPad BIOS
Same vendor: Lenovo
Same weakness: CWE-276

V. Comments for CVE-2022-4575

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