CVE-2026-35019

NetComm NF20MESH < R6B032 Hardcoded AES Key Authentication Bypass

Published Jun 23, 2026 CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:h:netcommwireless:nf20mesh:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Netcommwireless
Netcommwireless nf20mesh
Vendors & Products Netcommwireless
Netcommwireless nf20mesh
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title NetComm NF20MESH < R6B032 Hardcoded AES Key Authentication Bypass
Weaknesses CWE-321
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jul 14, 2026, 8:00 PM
Reserved
Mar 31, 2026, 8:40 PM
Status
Deferred
Published
Jun 23, 2026, 3:16 PM
Modified
Oct 25, 2026, 11:10 PM