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Security Advisories


OnCell G3100-HSPA Series Cellular Gateway/Router Vulnerabilities

  • Security Advisory ID: MCSA-180102
  • Version: 1.0
  • Release Date: Mar 13, 2018
  • Reference:
    • CVE-2018-5455, CVE-2018-5453, CVE-2018-5449

Multiple product vulnerabilities were identified in Moxa’s OnCell G3100-HSPA Series Cellular Gateway/Router. 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

Reliance on cookies without validation and integrity checking

The application allows a cookie parameter to consist of only digits, allowing an attacker to perform a brute force attack bypassing authentication and gaining access to device functions.

Improper handling of length parameter inconsistency

An attacker may be able to edit the element of an HTTP request, causing the device to become unavailable.

Null pointer dereference

The application does not check for a NULL value, allowing for an attacker to perform a denial of service attack.

Affected Products

The affected products and firmware versions are shown below.

Product Series Affected Version
OnCell G3100-HSPA Series Firmware Version 1.4 or prior



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

Product Series Solutions
OnCell G3100-HSPA Series Please download the new firmware/software here.


Revision History

Version Description Release Date
1.0 First Release Mar 13, 2018

Relevant Products

OnCell G3100-HSPA Series ·

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