CVE-2026-35018

HIGH EPSS 47.1%
Published Jun 23, 20266d ago · Modified Jun 24, 20265d ago
8.7 CVSS 4.0
High
Find Similar
Published Jun 23, 2026 6d ago
Last Modified Jun 24, 2026 5d ago

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.

CVSS Details

Base Score
8.7
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
47.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-78 OS Command Injection Injection

References 4

  • signal11.io https://signal11.io/advisories/netcomm-nf20-mesh-remote-code-execution
  • support.netcommwireless.com https://support.netcommwireless.com/api/Media/Firmware/4407c21d-e990-49a4-9754-b72475f20c76?Product=NF20MESH%20Release%20Notes.pdf
  • support.netcommwireless.com https://support.netcommwireless.com/products/nf20mesh#Firmware
  • vulncheck.com https://www.vulncheck.com/advisories/netcomm-nf20mesh-r6b032-authenticated-rce-via-os-command-injection

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.