NetComm NF20MESH < R6B032 Hardcoded AES Key Authentication Bypass (CVE-2026-35019) | HOL Guard CVE

High · CVSS 8.1CVE-2026-35019

NetComm NF20MESH < R6B032 Hardcoded AES Key Authentication Bypass

Answer in brief

CVE-2026-35019 records a High severity (CVSS 8.1) vulnerability in NetComm NF20MESH < R6B032 Hardcoded AES Key Authentication Bypass. The current sources do not mark it as known exploited. The current feed maps NetComm Wireless Pty Ltd/NF20MESH (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 23, 2026Updated Jul 14, 2026Source checked Sep 19, 2026First seen by HOL Jun 23, 2026Material review Jul 14, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.1
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps NetComm Wireless Pty Ltd/NF20MESH (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
NetComm Wireless Pty Ltd/NF20MESHgeneric	>=0 <R6B032	R6B032

Recommended response

Check inventory. Check lockfiles and deployed manifests for NetComm Wireless Pty Ltd/NF20MESH.
Review the reported fix. Update NetComm Wireless Pty Ltd/NF20MESH to R6B032 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jun 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jun 23, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.