CVE-2026-77031— Tenda CH22 formcreateFileName command injection
Quick assessment
Affected
Tenda CH22
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.
Tenda ch22 firmware是中国Tenda公司的一款路由器固件。 Tenda ch22 firmware 1.0.0.1版本存在安全漏洞，该漏洞源于/goform/formcreateFileName文件中的formcreateFileName函数对fileNameMit参数操作不当，导致命令注入，攻击者可远程利用。
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-2026-77031
Vulnerability Information
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Vulnerability Title
Tenda CH22 formcreateFileName command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in Tenda CH22 1.0.0.1. The affected element is the function formcreateFileName of the file /goform/formcreateFileName. The manipulation of the argument fileNameMit leads to command injection. The attack can be initiated 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:C/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 ch22 firmware 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda ch22 firmware是中国Tenda公司的一款路由器固件。 Tenda ch22 firmware 1.0.0.1版本存在安全漏洞，该漏洞源于/goform/formcreateFileName文件中的formcreateFileName函数对fileNameMit参数操作不当，导致命令注入，攻击者可远程利用。
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-2026-77031
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-77031 (2)
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🔗 CVE-2026-77031 in CH22 third-party-advisory
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Proof of Concept for CVE-2026-77031 (1)
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🔗 Submit #880667: Tenda CH22 V1.0.0.1 Command Injection third-party-advisory
Security Blog Posts for CVE-2026-77031 (1)
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🔗 candle-throne-f75.notion.site exploit
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V. Comments for CVE-2026-77031
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