MOXA NPort 5110 Out-of-Bounds Write (CVE-2022-2043)

high Tenable OT Security Plugin ID 501450


The remote OT asset is affected by a vulnerability.


MOXA NPort 5110: Firmware Versions 2.10 is vulnerable to an out-of- bounds write that can cause the device to become unresponsive.

This plugin only works with Tenable.ot.
Please visit for more information.


The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at

MOXA recommends contacting Technical Support for the security patch.

See Also

Plugin Details

Severity: High

ID: 501450

Version: 1.4

Type: remote

Family: Tenable.ot

Published: 8/2/2023

Updated: 3/4/2024

Supported Sensors: Tenable OT Security

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2022-2043


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:moxa:nport_5110_firmware:2.10

Required KB Items: Tenable.ot/Moxa

Exploit Ease: No known exploits are available

Patch Publication Date: 8/31/2022

Vulnerability Publication Date: 8/31/2022

Reference Information

CVE: CVE-2022-2043

CWE: 787