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CVE-2021-3519

Quick assessment

Affected
Lenovo Desktop 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 ThinkStation（联想台式工作站）是中国联想（Lenovo）公司的台式工作站 ThinkStation 存在授权问题漏洞，该漏洞源于当"BIOS Password At Boot Device List"设置为True时，攻击者可以未经授权访问引导菜单。

CVSS 6.4 · Medium EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1502
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I. Basic Information for CVE-2021-3519

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was reported in some Lenovo Desktop models that could allow unauthorized access to the boot menu, when the "BIOS Password At Boot Device List" BIOS setting is Yes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
ThinkStation 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lenovo ThinkStation（联想台式工作站）是中国联想（Lenovo）公司的台式工作站 ThinkStation 存在授权问题漏洞，该漏洞源于当"BIOS Password At Boot Device List"设置为True时，攻击者可以未经授权访问引导菜单。
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 Desktop BIOS various -

II. Public POCs for CVE-2021-3519

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III. Intelligence Information for CVE-2021-3519

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Vendor Advisories for CVE-2021-3519 (1)

Same Patch Batch · Lenovo · 2021-11-12 · 7 CVEs total

CVE-2021-3843 6.7 MEDIUM Lenovo ThinkPad 输入验证错误漏洞
CVE-2021-3719 6.7 MEDIUM ThinkCentre和ThinkStation输入验证错误漏洞
CVE-2021-3599 6.7 MEDIUM Lenovo ThinkPad 输入验证错误漏洞
CVE-2021-3720 5.5 MEDIUM Legion Phone Pro（L79031）和Legion Phone2 Pro（L70081）上时间天气系统小部件 安全漏洞
CVE-2021-3786 4.4 MEDIUM Lenovo ThinkPad 输入验证错误漏洞
CVE-2021-3718 4.3 MEDIUM Lenovo ThinkPad 安全漏洞

IV. Related Vulnerabilities

Same product: Desktop BIOS
Same vendor: Lenovo
Same weakness: CWE-287

V. Comments for CVE-2021-3519

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