CVE-2016-9363 Memory corruption in Moxa NPort

High 7.3 Published 13 Feb 2017 Updated 2 Jun 2026

Unauthenticated attackers can remotely execute arbitrary code via a buffer overflow in Moxa NPort serial servers.

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-2016-9363?

CVE-2016-9363 is a high-severity memory corruption vulnerability in Moxa NPort, published on 13 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in Moxa NPort 5110 versions prior to 2.6, NPort 5130/5150 Series versions prior to 3.6, NPort 5200 Series versions prior to 2.8, NPort 5400 Series versions prior to 3.11, NPort 5600 Series versions prior to 3.7, NPort 5100A Series & NPort P5150A versions prior to 1.3, NPort 5200A Series versions prior to 1.3, NPort 5150AI-M12 Series versions prior to 1.2, NPort 5250AI-M12 Series versions prior to 1.2, NPort 5450AI-M12 Series versions prior to 1.2, NPort 5600-8-DT Series versions prior to 2.4, NPort 5600-8-DTL Series versions prior to 2.4, NPort 6x50 Series versions prior to 1.13.11, NPort IA5450A versions prior to v1.4. Buffer overflow vulnerability may allow an unauthenticated attacker to remotely execute arbitrary code.

Weakness: CWE-119, CWE-120

Which versions are affected by CVE-2016-9363?

It affects 10 products.

Products include Moxa Nport 5100 Series Firmware, Moxa Nport 5100a Series Firmware, Moxa Nport 5200 Series Firmware, Moxa Nport 5200a Series Firmware, Moxa Nport 5400 Series Firmware, Moxa Nport 5600-8-Dtl Series Firmware and 4 more.

How do I fix CVE-2016-9363?

No fix has been published for CVE-2016-9363 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-2016-9363 being exploited?

There is no known exploitation of CVE-2016-9363 in the wild and no public exploit code.

Sources

Also known as GHSA-v88g-7m4q-fv37.