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Security Advisories


NPort IA5450A Series Serial Device Servers Vulnerability

  • Security Advisory ID: MPSA-190703
  • Version: V1.0
  • Release Date: Aug 12, 2019

A product vulnerability was identified in Moxa’s NPort IA5450A Series Serial Device Servers. In response to this, Moxa has developed a solution to address the vulnerability

The identified vulnerability type and potential impact is shown below:

Item Vulnerability Type Impact
1 Information Leak / Disclosure An attacker may be able to exploit a flaw in the handling of Ethernet frame padding that may allow information to be exposed.

Affected Products:

The affected product and firmware versions are shown below.

Product Series Affected Versions
NPort IA5450A Series Firmware Version 1.5 or lower



Moxa has developed appropriate solution to address the vulnerability. The solution for affected product is shown below.

Product Series Solutions
NPort IA5450A Series Please download the new firmware/software here.



We would like to express our appreciation to Bryan Peloquin from American Systems Corporation for reporting the vulnerability, working with us to help enhance the security of our products, and helping us provide a better service to our customers.


Revision History:

1.0 First Release Aug 12, 2019

Relevant Products

NPort IA5000A Series ·

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