Is CVE-2018-11422 actively exploited?

No active exploitation of CVE-2018-11422 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-11422 be exploited remotely?

Yes. CVE-2018-11422 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-11422?

CVE-2018-11422 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2018-11422

CRITICAL

CVE-2018-11422

CWE-319Published: July 3, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Moxa OnCell G3100-HSPA Series version 1.6 Build 17100315 and prior use a proprietary configuration protocol that does not provide confidentiality, integrity, and authenticity security controls. All information is sent in plain text, and can be intercepted and modified. Any commands (including device reboot, configuration download or upload, or firmware upgrade) are accepted and executed by the device without authentication.

NVD Source

Technical Analysis

CVE-2018-11422 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 9.8.