Is CVE-2026-35019 actively exploited?

No active exploitation of CVE-2026-35019 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-35019 be exploited remotely?

Yes. CVE-2026-35019 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-35019?

CVE-2026-35019 has a CVSS score of 8.1 (HIGH).

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HIGH

CVE-2026-35019

CWE-321Published: June 23, 2026· Updated: Jun 23, 2026

8.1

CVSS v3.1

EPSS:0.43%probability of exploitation in 30 daysPercentile:34.4th

Official 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.

NVD Source

Technical Analysis

CVE-2026-35019 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.