CVE-2025-9090— Tenda AC20 Telnet Service telnet websFormDefine command injection
Quick assessment
Affected
Tenda AC20
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Tenda AC20是中国腾达（Tenda）公司的一款无线路由器。 Tenda AC20 16.03.08.12版本存在注入漏洞，该漏洞源于/goform/telnet文件中websFormDefine函数存在命令注入。
Public Exploits 1
ExploitDB · 1
EDB-52418 [remote]
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-9090
Vulnerability Information
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Vulnerability Title
Tenda AC20 Telnet Service telnet websFormDefine command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in Tenda AC20 16.03.08.12. Affected is the function websFormDefine of the file /goform/telnet of the component Telnet Service. The manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda AC20 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda AC20是中国腾达（Tenda）公司的一款无线路由器。 Tenda AC20 16.03.08.12版本存在注入漏洞，该漏洞源于/goform/telnet文件中websFormDefine函数存在命令注入。
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
II. Public POCs for CVE-2025-9090
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Command Injection in Tenda AC20 16.03.08.12 (/goform/telnet) | https://github.com/byteReaper77/CVE-2025-9090 | POC Details |
AI-Generated POC
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V. Comments for CVE-2025-9090
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