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CVE-2026-35018— NetComm NF20MESH < R6B032 Authenticated RCE via OS Command Injection

Quick assessment

Affected
NetComm Wireless Pty Ltd NF20MESH
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.

NetComm Wireless NF20MESH是澳大利亚NetComm Wireless公司的一款无线路由器。 NetComm Wireless Pty Ltd NF20MESH R6B032之前版本存在命令注入漏洞，该漏洞源于通过dalStorage_addUserAccount函数处理username JSON参数时，将用户输入不安全地连接到传递给rut_doSystemAction的shell命令字符串且未进行清理，可能导致经过身份验证的攻击者注入shell元字符实现root级远程代码执行。

CVSS 8.8 · High EPSS 1.27% · P69

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
NetComm Wireless Pty Ltd NF20MESH < R6B032 affected
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I. Basic Information for CVE-2026-35018

Vulnerability Information
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Vulnerability Title
NetComm NF20MESH < R6B032 Authenticated RCE via OS Command Injection
Source: CVE Program / CVE List V5
Vulnerability Description
NetComm NF20MESH routers running firmware R6B031 and earlier contain an authenticated remote code execution vulnerability that allows authenticated attackers to execute arbitrary commands as root by injecting shell metacharacters into the username JSON parameter processed by the dalStorage_addUserAccount function. Attackers can exploit the unsafe concatenation of user-supplied input into a shell command string passed to rut_doSystemAction without sanitization to achieve full root-level command execution on the underlying operating system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
NetComm Wireless Pty Ltd NF20MESH 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NetComm Wireless NF20MESH是澳大利亚NetComm Wireless公司的一款无线路由器。 NetComm Wireless Pty Ltd NF20MESH R6B032之前版本存在命令注入漏洞，该漏洞源于通过dalStorage_addUserAccount函数处理username JSON参数时，将用户输入不安全地连接到传递给rut_doSystemAction的shell命令字符串且未进行清理，可能导致经过身份验证的攻击者注入shell元字符实现root级远程代码执行。
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
NetComm Wireless Pty Ltd NF20MESH 0 ~ R6B032 -

II. Public POCs for CVE-2026-35018

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III. Intelligence Information for CVE-2026-35018

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Vendor Advisories for CVE-2026-35018 (2)

Vendor Pages for CVE-2026-35018 (2)

IV. Related Vulnerabilities

Same product: NF20MESH
Same vendor: NetComm Wireless Pty Ltd
Same weakness: CWE-78

V. Comments for CVE-2026-35018

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