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CVE-2021-3614

Quick assessment

Affected
Lenovo Notebook 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 Bios是中国联想（Lenovo）公司的一种电脑的引导方式。用于电脑启动时引导系统。 Lenovo BIOS 存在安全漏洞，该漏洞源于系统中缺少身份验证措施，攻击者可在物理访问和当BIOS 更新显示为Lenove Vantage时进行权限提升。

CVSS 6.4 · Medium EPSS 0.24% · P13
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I. Basic Information for CVE-2021-3614

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was reported on some Lenovo Notebook systems that could allow an attacker with physical access to elevate privileges under certain conditions during a BIOS update performed by Lenovo Vantage.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未能安全地进行程序失效(Failing Open)
Source: CVE Program / CVE List V5
Vulnerability Title
Lenovo BIOS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lenovo Bios是中国联想（Lenovo）公司的一种电脑的引导方式。用于电脑启动时引导系统。 Lenovo BIOS 存在安全漏洞，该漏洞源于系统中缺少身份验证措施，攻击者可在物理访问和当BIOS 更新显示为Lenove Vantage时进行权限提升。
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 Notebook BIOS various -

II. Public POCs for CVE-2021-3614

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III. Intelligence Information for CVE-2021-3614

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Vendor Advisories for CVE-2021-3614 (1)

Same Patch Batch · Lenovo · 2021-07-16 · 4 CVEs total

CVE-2021-3550 7.8 HIGH Lenovo Pcmanager 代码问题漏洞
CVE-2021-3453 6.8 MEDIUM 多款 Lenovo 设备 安全漏洞
CVE-2021-3452 6.7 MEDIUM Lenovo Bios 授权问题漏洞

IV. Related Vulnerabilities

Same product: Notebook BIOS
Same vendor: Lenovo
Same weakness: CWE-636

V. Comments for CVE-2021-3614

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