CVE-2021-3969
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I. Basic Information for CVE-2021-3969
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A Time of Check Time of Use (TOCTOU) vulnerability was reported in IMController, a software component of Lenovo System Interface Foundation, prior to version 1.1.20.3that could allow a local attacker to elevate privileges.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: NVD (National Vulnerability Database)
Vulnerability Title
Lenovo Vantage 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lenovo Vantage是中国联想（Lenovo）公司的一款计算机管理应用程序。该程序支持驱动程序更新、设备状态诊断和计算机配置等功能。 Lenovo Vantage 组件存在安全漏洞，该漏洞可能允许本地攻击者提升权限。
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 | IMController | unspecified ~ 1.1.20.3 | - |
II. Public POCs for CVE-2021-3969
| # | 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-75210x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-3969
Same Patch Batch · Lenovo · 2022-05-18 · 9 CVEs total
| CVE-2021-42850 | 8.8 HIGH | Lenovo Personal Cloud Storage 信任管理问题漏洞 |
| CVE-2021-42852 | 8.0 HIGH | Lenovo Personal Cloud Storage 操作系统命令注入漏洞 |
| CVE-2021-3922 | 7.8 HIGH | Lenovo Vantage 竞争条件问题漏洞 |
| CVE-2021-42849 | 6.8 MEDIUM | Lenovo Personal Cloud Storage 授权问题漏洞 |
| CVE-2021-42851 | 6.3 MEDIUM | Lenovo Personal Cloud Storage 安全漏洞 |
| CVE-2022-1110 | 5.5 MEDIUM | Lenovo Smart Standby Driver 安全漏洞 |
| CVE-2021-42848 | 4.3 MEDIUM | Lenovo Personal Cloud Storage 安全漏洞 |
| CVE-2021-3956 | 4.3 MEDIUM | Lenovo XClarity Controller 安全漏洞 |
IV. Related Vulnerabilities
Same product: IMController
Same weakness: CWE-367
- CVE-2026-42344
FastGPT: DNS rebinding TOCTOU bypass in isInternalAddress al - CVE-2026-44694
n8n-MCP: Authenticated SSRF in n8n-mcp webhook and API clien - CVE-2025-69233
Apache CloudStack: Domain/account resources limits not honor - CVE-2026-34354
Akamai Guardicore Platform Agent 安全漏洞 - CVE-2026-41002
VMware Spring Cloud Config 安全漏洞
V. Comments for CVE-2021-3969
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