CVE-2021-3786
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I. Basic Information for CVE-2021-3786
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A potential vulnerability in the SMI callback function used in CSME configuration of some Lenovo Notebook and ThinkPad systems could be used to leak out data out of the SMRAM range.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Lenovo ThinkPad 输入验证错误漏洞
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。 部分联想笔记本电脑和ThinkPad系统的CSME配置中使用的SMI回调函数存在输入验证错误漏洞，攻击者可利用该漏洞获取SMRAM范围以外的数据。
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 and ThinkPad BIOS | various | - |
II. Public POCs for CVE-2021-3786
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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- https://support.lenovo.com/us/en/product_security/LEN-67440x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-3786
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-2021-3519 | 6.4 MEDIUM | ThinkStation 授权问题漏洞 |
| 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-2021-3718 | 4.3 MEDIUM | Lenovo ThinkPad 安全漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-20
V. Comments for CVE-2021-3786
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