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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://signal11.io/advisories/netcomm-nf20-mesh-remote-code-execution
- https://support.netcommwireless.com/api/Media/Firmware/4407c21d-e990-49a4-9754-b
- https://support.netcommwireless.com/products/nf20mesh#Firmware
- https://www.vulncheck.com/advisories/netcomm-nf20mesh-r6b032-authenticated-rce-v
- https://signal11.io/advisories/netcomm-nf20-mesh-remote-code-execution
FAQ
What is CVE-2026-35018?
CVE-2026-35018 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 i...
How severe is CVE-2026-35018?
CVE-2026-35018 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-35018?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.