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Security Advisories


VPort 06EC-2V Series IP Cameras Vulnerabilities

  • Security Advisory ID: MPSA-210301
  • Version: V1.0
  • Release Date: Mar 16, 2021
  • Reference:
    • CVE-2021-25845, CVE-2021-25846, CVE-2021-25849, CVE-2021-25847, CVE-2021-25848

Multiple product vulnerabilities were identified in Moxa’s VPort 06EC-2V Series IP Cameras. 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

NULL Pointer Dereference


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.

Integer Underflow

CVE-2021-25846, CVE-2021-25849,

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

Out-of-Bounds Read

CVE-2021-25847, CVE-2021-25848

An attacker may be able to edit the element of an HTTP request to read sensitive information or even cause the device to become unavailable.

Affected Products:

The affected products and firmware versions are shown below.

Product Series Affected Versions
VPort 06EC-2V Series Firmware Version 1.1 or lower



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

Product Series Solutions
VPort 06EC-2V Series Please contact Moxa Technical Support for a security patch.



We would like to express our appreciation to Qian Chen of Qihoo 360 Nirvan Team 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 Mar 16, 2021

Relevant Products

VPort 06EC-2V Series ·

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