Read the docs
TI-2026-27229 Aliases CVE-2026-35019GHSA-pqh9-6ffr-v5fc

NetComm NF20MESH < R6B032 Hardcoded AES Key Authentication Bypass

Priority MEDIUM 43CWE-321Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-321.

Summary

NetComm NF20MESH routers running firmware R6B031 and earlier contain an authentication bypass vulnerability that allows unauthenticated attackers to gain administrative access by exploiting a hardcoded AES-256 key used to encrypt session cookies for the web management interface. Attackers can forge a valid encrypted session cookie using the shared hardcoded key and bypass authentication checks to obtain full administrative control of the management interface while any legitimate administrator session is active.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00806 57th percentileScored 2026-11-07
Fix Fixed NF20MESH (NetComm Wireless Pty Ltd): R6B032

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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-2026-27228 NetComm NF20MESH < R6B032 Authenticated RCE via OS Command InjectionPriority HIGH 73
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35019
  2. 2026-10-03 Alias added: GHSA-pqh9-6ffr-v5fc

References

Patch 1

Other 2

  • TI-2026-27228 NetComm NF20MESH < R6B032 Authenticated RCE via OS Command Injection CVSS 4.0HIGH 8.7
  • 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-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