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Security Advisories


NPort W2150A/W2250A Series Serial Device Servers Vulnerability

  • Security Advisory ID: MPSA-211204
  • Version: V1.0
  • Release Date: Dec 14, 2021
  • Reference:
    • N/A

A product vulnerability was identified in Moxa’s NPort W2150A/W2250A Series Serial Device Servers. In response to this, Moxa has developed related solutions to address this vulnerability.

The identified vulnerability type and potential impacts are shown below:

Item Vulnerability Type Impact
1 Command injection A vulnerability in the web server allows an authorized user with administrator rights to execute code on the root operating system.



Affected Products:

The affected products and firmware versions are shown below.

Product Series Affected Versions
NPort W2150A/W2250A Series Firmware Version 1.11 or lower.



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

Product Series Solutions
NPort W2150A/W2250A Series Please upgrade to firmware version 2.2 or higher. (Download Link)


We would like to express our appreciation to Vladimir Razov from CybersLab 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 Dec 14, 2021

Relevant Products

NPort W2150A/W2250A Series ·

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