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Security Advisories


EDR-G903, EDR-G902, and EDR-810 Series Secure Routers Vulnerability

  • Security Advisory ID: MPSA-220101
  • Version: V1.0
  • Release Date: Jan 06, 2022
  • Reference:
    • N/A

Multiple product vulnerabilities were identified in Moxa’s EDR-G903, EDR-G902, and EDR-810 Series. In response to this, Moxa has developed related solutions to address these vulnerabilities.

The identified vulnerability types and potential impacts are shown below:

Item Vulnerability Type Impact
1 Memory Leak Continuously sending crafted packets may cause an affected device to experience a memory leak and fail to release memory when it is no longer required.



Affected Products:

The affected products and firmware versions are shown below.

Product Series Affected Versions
EDR-G903 Series Firmware Version 5.6 or lower.
EDR-G902 Series Firmware Version 5.6 or lower.
EDR-810 Series Firmware Version 5.8 or lower.



Moxa has developed appropriate solutions to address the vulnerabilities. The solutions for affected products are shown below.

Product Series Solutions
EDR-G903 Series Please upgrade to firmware version 5.7 or higher. (Download Link)
EDR-G902 Series Please upgrade to firmware version 5.7 or higher. (Download Link)
EDR-810 Series Please upgrade to firmware version 5.9 or higher. (Download Link)


We would like to express our appreciation to Qian Chen from the Codesafe Team of Legendsec at Qi'anxin Group 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 Jan 6, 2022

Relevant Products

EDR-810 Series · EDR-G902 Series · EDR-G903 Series ·

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