CVE-2025-11500— Credentials exposure in tinycontrol devices
Quick assessment
Affected
tinycontrol Lan Kontroler v3.5
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.
Tinycontrol tcPDU等都是波兰Tinycontrol公司的产品。Tinycontrol tcPDU是一款网络分配单元Tinycontrol LAN Controllers LK3.5是一款环境参数远程监控和控制设备。Tinycontrol LAN Controllers LK3.9是一款环境参数远程监控和控制设备。 Tinycontrol多款产品存在安全漏洞，该漏洞源于身份验证机制存在缺陷，可能导致本地网络上的未经身份验证的攻击者获取凭据。以下产品受到影响：tcPDU、LAN Control
Possible ATT&CK Techniques 1 AI
T1005 · Data from Local System
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I. Basic Information for CVE-2025-11500
Vulnerability Information
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Vulnerability Title
Credentials exposure in tinycontrol devices
Source: CVE Program / CVE List V5
Vulnerability Description
Tinycontrol devices such as tcPDU and LAN Controllers LK3.5, LK3.9 and LK4 have two separate authentication mechanisms - one solely for interface management and one for protecting all other server resources. When the latter is turned off (which is a default setting), an unauthenticated attacker on the local network can obtain usernames and encoded passwords for interface management portal by inspecting the HTTP response of the server when visiting the login page, which contains a JSON file with these details. Both normal and admin users credentials are exposed.
This issue has been fixed in firmware versions: 1.36 (for tcPDU), 1.67 (for LK3.5 - hardware versions: 3.5, 3.6, 3.7 and 3.8), 1.75 (for LK3.9 - hardware version 3.9) and 1.38 (for LK4 - hardware version 4.0).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
口令使用弱密码学算法
Source: CVE Program / CVE List V5
Vulnerability Title
Tinycontrol多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tinycontrol tcPDU等都是波兰Tinycontrol公司的产品。Tinycontrol tcPDU是一款网络分配单元Tinycontrol LAN Controllers LK3.5是一款环境参数远程监控和控制设备。Tinycontrol LAN Controllers LK3.9是一款环境参数远程监控和控制设备。 Tinycontrol多款产品存在安全漏洞，该漏洞源于身份验证机制存在缺陷，可能导致本地网络上的未经身份验证的攻击者获取凭据。以下产品受到影响：tcPDU、LAN Control
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 |
|---|---|---|---|---|
| tinycontrol | Lan Kontroler v3.5 | 0 ~ 1.67 | - |
|
| tinycontrol | LK3.9 | 0 ~ 1.75 | - |
|
| tinycontrol | LK4 | 0 ~ 1.38 | - |
|
| tinycontrol | tcPDU | 0 ~ 1.36 | - |
|
II. Public POCs for CVE-2025-11500
| # | POC Description | Source Link | Shenlong Link |
|---|
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Security Blog Posts for CVE-2025-11500 (1)
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Vulnerabilities in multiple tinycontrol devices | CERT Polska third-party-advisory
Vendor Pages for CVE-2025-11500 (4)
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Downloads | Lan Controller v3.5 | tinycontrol release-notes
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Downloads | LK3.9 | tinycontrol release-notes
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Downloads | tcPDU | tinycontrol release-notes
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Downloads | LK4 - universal IoT controller | tinycontrol release-notes
Other References for CVE-2025-11500 (1)
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Securitum. Leading european penetration testing company technical-description
IV. Related Vulnerabilities
V. Comments for CVE-2025-11500
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