CVE-2022-2043 MOXA NPort 5110 Out-of-bounds Write

High 7.5 Published 31 Aug 2022 Updated 16 Apr 2025

An out-of-bounds write vulnerability in MOXA NPort 5110 allows attackers to cause the device to become unresponsive.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-2043?

CVE-2022-2043 is a high-severity memory corruption vulnerability in MOXA, published on 31 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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

Weakness: CWE-787

Which versions are affected by CVE-2022-2043?

It affects 1 product.

Products include Moxa Nport 5110 Firmware.

How do I fix CVE-2022-2043?

No fix has been published for CVE-2022-2043 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-2043 being exploited?

There is no known exploitation of CVE-2022-2043 in the wild and no public exploit code.

Sources

Also known as GHSA-w4r2-5c62-qrmc.