CVE-2026-35018

NetComm NF20MESH < R6B032 Authenticated RCE via OS Command Injection

Published Jun 23, 2026 CVSS 4.0 · 8.7 High EPSS 1.3% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:h:netcommwireless:nf20mesh:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Netcommwireless
Netcommwireless nf20mesh
Vendors & Products Netcommwireless
Netcommwireless nf20mesh
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title NetComm NF20MESH < R6B032 Authenticated RCE via OS Command Injection
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jul 14, 2026, 8:00 PM
Reserved
Mar 31, 2026, 8:40 PM
Status
Deferred
Published
Jun 23, 2026, 3:16 PM
Modified
Oct 25, 2026, 11:10 PM