CVE-2026-4477— Yi Technology YI Home Camera WPA/WPS hard-coded key
Quick assessment
Affected
Yi Technology YI Home Camera
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.
Yi Technology YI Home Camera 2是中国Yi Technology公司的一款智能家用摄像设备。 Yi Technology YI Home Camera 2 2.1.1_20171024151200版本存在安全漏洞，该漏洞源于组件WPA/WPS使用硬编码加密密钥。
Possible ATT&CK Techniques 1 AI
T1552.004 · Private Keys
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I. Basic Information for CVE-2026-4477
Vulnerability Information
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Vulnerability Title
Yi Technology YI Home Camera WPA/WPS hard-coded key
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in Yi Technology YI Home Camera 2 2.1.1_20171024151200. This affects an unknown function of the component WPA/WPS. Executing a manipulation can lead to use of hard-coded cryptographic key
. The attack can only be done within the local network. This attack is characterized by high complexity. The exploitability is reported as difficult. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的密码学密钥
Source: CVE Program / CVE List V5
Vulnerability Title
Yi Technology YI Home Camera 2 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Yi Technology YI Home Camera 2是中国Yi Technology公司的一款智能家用摄像设备。 Yi Technology YI Home Camera 2 2.1.1_20171024151200版本存在安全漏洞，该漏洞源于组件WPA/WPS使用硬编码加密密钥。
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 |
|---|---|---|---|---|
| Yi Technology | YI Home Camera | 2 2.1.1_20171024151200 | - |
|
II. Public POCs for CVE-2026-4477
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Yi Technology · 2026-03-20 · 4 CVEs total
| CVE-2026-4475 | 8.8 HIGH | Yi Technology YI Home Camera ipc hard-coded credentials |
| CVE-2026-4478 | 8.1 HIGH | Yi Technology YI Home Camera HTTP Firmware Update ipc signature verification |
| CVE-2026-4476 | 6.3 MEDIUM | Yi Technology YI Home Camera CGI Endpoint ipc missing authentication |
IV. Related Vulnerabilities
V. Comments for CVE-2026-4477
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