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CVE-2026-35018 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://signal11.io/advisories/netcomm-nf20-mesh-remote-code-execution	CISA-ADP	AdvisoryRemedy
https://signal11.io/advisories/netcomm-nf20-mesh-remote-code-execution	[email protected]	AdvisoryRemedy
https://support.netcommwireless.com/api/Media/Firmware/4407c21d-e990-49a4-9754-b72475f20c76?Product=NF20MESH%20Release%20Notes.pdf	[email protected]	Release NotesVendor
https://support.netcommwireless.com/products/nf20mesh#Firmware	[email protected]	ProductVendor
https://www.vulncheck.com/advisories/netcomm-nf20mesh-r6b032-authenticated-rce-via-os-command-injection	[email protected]	Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-78	Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')	[email protected]

Affected Products

Product	Versions
NetComm NF20MESH	<= R6B031
CPE cpe:2.3:h:netcommwireless:nf20mesh:::::::: cpe:2.3:o:netcommwireless:nf20mesh_firmware:::::::: Remediation Upgrade: R6B032moderate efforthttps://support.netcommwireless.com/api/Media/Firmware/7af494c9-c9c1-45f1-ae59-38fca75ab8e0?Product=NF20MESH.NC.UR-R6B032.zip Mitigation:low effort Change default passwords for all user accounts. Mitigation:low effort Prevent direct exposure of affected devices to the public internet. Mitigation:low effort Segment affected devices from sensitive internal assets.

Product

Versions

NetComm NF20MESH

<= R6B031

CPE

cpe:2.3:h:netcommwireless:nf20mesh:*:*:*:*:*:*:*:*
cpe:2.3:o:netcommwireless:nf20mesh_firmware:*:*:*:*:*:*:*:*

Remediation

Upgrade: R6B032moderate efforthttps://support.netcommwireless.com/api/Media/Firmware/7af494c9-c9c1-45f1-ae59-38fca75ab8e0?Product=NF20MESH.NC.UR-R6B032.zip
Mitigation:low effort
Change default passwords for all user accounts.
Mitigation:low effort
Prevent direct exposure of affected devices to the public internet.
Mitigation:low effort
Segment affected devices from sensitive internal assets.

Change History

2 change records found show changes

Date	Action	Recorded By
Jun 24, 2026	CVE Modified	CISA-ADP
Jun 23, 2026	New CVE Received	[email protected]