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TI-2026-27228 Aliases CVE-2026-35018GHSA-jqc2-w244-p56p

NetComm NF20MESH < R6B032 Authenticated RCE via OS Command Injection

Priority HIGH 73CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01266 69th percentileScored 2026-11-07
Fix Fixed NF20MESH (NetComm Wireless Pty Ltd): R6B032

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NetComm Wireless Pty LtdNF20MESHbefore R6B032R6B032Patch availableCNA

Remediation

  • Fix · CNA NF20MESH (NetComm Wireless Pty Ltd) Fixed in R6B032

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    NetComm Wireless NF20MESH R6B032

    2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2026-27229 NetComm NF20MESH < R6B032 Hardcoded AES Key Authentication BypassPriority MEDIUM 43
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35018
  2. 2026-10-03 Alias added: GHSA-jqc2-w244-p56p

References

Patch 1

Other 2

  • TI-2022-04467 Improper authentication in Netcomm NF20 CVSS 3.1HIGH 7.5
  • TI-2015-05095 ping.cgi in NetCommWireless HSPA 3G10WVE wireless routers with firmware before… CVSS 3.0CRITICAL 9.8
  • TI-2022-04466 Stack based overflow on Netcomm router models NF20MESH, NF20, and NL1902 CVSS 3.1CRITICAL 9.8
  • TI-2015-05094 ping.cgi in NetCommWireless HSPA 3G10WVE wireless routers with firmware before… CVSS 3.0HIGH 7.3
  • TI-2026-27229 NetComm NF20MESH < R6B032 Hardcoded AES Key Authentication Bypass CVSS 4.0CRITICAL 9.2
  • TI-2018-10613 Cross-site request forgery in ICS-CERT NetComm Wireless G LTE Light Industrial M2M Router… CVSS 3.0HIGH 8.8
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences