As of June 15, 2022, this site no longer supports Internet Explorer. Please use another browser for the best experience on our site.

Product support

Security Advisories

SUMMARY

CVE-2026-109812, CVE-2026-109813: Vulnerabilities in Industrial Computing Products

This security advisory addresses two vulnerabilities identified in industrial computing products.

CVE-2026-109812 - Missing Authorization on Secret Endpoints

A missing authorization vulnerability exists in the internal API `/api/v1/secrets/` of some of Moxa's industrial computing products. A low-privileged authenticated attacker with adjacent network access could exploit this vulnerability to access sensitive information, potentially resulting in the disclosure of confidential data, including cryptographic key material.

CVE-2026-109813 - Shared Hard-coded Root CA Private Key 

A hard-coded cryptographic key vulnerability exists in the `/usr/bin/sysman` of some of Moxa's industrial computing products. An unauthenticated attacker with adjacent network access could exploit the exposed private key material to compromise the confidentiality and integrity of communications.

Given the high severity of these issues, users should apply the solutions immediately to reduce security risks.

 

The Identified Vulnerability Type and Potential Impact 

CVE ID Vulnerability Type Impact
CVE-2026-109812

CWE-862: Missing Authorization

CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs
CVE-2026-109813 CWE-321: Use of Hard-coded Cryptographic Key CAPEC-37: Retrieve Embedded Sensitive Data

Vulnerability Scoring Details 

CVE ID
Base Score
Vector
Severity

Unauthenticated

Remote Exploits

CVE-2026-109812

CVSS 4.0: 6.9

AV:A/AC:L/AT:N/PR:L/UI:N/

VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Medium No
CVE-2026-109813 CVSS 4.0: 8.6

AV:A/AC:L/AT:N/PR:N/UI:N/

VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

High No
AFFECTED PRODUCTS AND SOLUTIONS

Solutions

Moxa has developed appropriate solutions to address the vulnerability. The solutions for the affected products are listed in the following table: 

Product Series Affected Versions Solutions

AIG-xx2 Series

  • AIG-302 Series

Firmware

  • v1.4.0 and earlier

Security patch

  • v1.4.1

Users can obtain the update through the following methods:

  1. If the AIG-302 has Internet access: Log in to the AIG-302 Web Console, go to Maintenance > Software Upgrades, and click Check for upgrades to check for and obtain the update.
  2. Download the v1.4.1 patch manually: Download the patch from either the official AIG-302 product website or the Moxa Software Release Service. Then, log in to the AIG-302 Web Console, navigate to Maintenance > Software Upgrades, and select Package Upload to upload the patch.

 

Mitigations

For users who may not be able to perform a firmware update, we provide the following recommended mitigation measures as an alternative to mitigate the risk associated with the vulnerability.

  • Refer to the General Security Recommendations section to further strengthen your security context.

 

General Security Recommendations

To safeguard devices and networks, we recommend implementing the following recommendations to mitigate potential risks:

  1. Restrict Network Access
    • Use firewalls or access control lists (ACLs) to limit communication to trusted IP addresses and networks.
    • Segregate operational networks from other networks (e.g., enterprise networks) using VLANs or physical separation.
  2. Minimize Exposure
    • Avoid exposing devices directly to the Internet.
    • Disable unused network services and ports to reduce the attack surface.
  3. Enhance Device Authentication and Access Control
    • Implement multi-factor authentication (MFA) for accessing critical systems.
    • Use role-based access control (RBAC) to enforce the principle of least privilege.
    • Prohibit the use of weak passwords and enforce a password policy that includes password complexity requirements, periodic password changes, and restrictions on password reuse.
  4. Regularly Update Firmware and Software
    • Keep devices updated with the latest firmware versions and security patches.
    • Establish a regular patch management schedule to address newly identified vulnerabilities.
  5. Secure Remote Access
    • Use encrypted communication protocols (e.g., VPN, SSH) for remote access.
    • Restrict remote access to authorized personnel only and enforce strong authentication mechanisms.
  6. Implement Anomaly Detection Techniques
    • Monitor network traffic and device behavior for unusual or unauthorized activities.
    • Use tools or techniques that can identify anomalies and provide alerts for potential threats.
  7. Implement Logging and Monitoring
    • Enable event logging and maintain audit trails on devices.
    • Regularly review logs for anomalies and unauthorized access attempts.
  8. Conduct Regular Security Assessments
    • Perform vulnerability assessments to identify potential risks.
    • Regularly review device configurations to ensure compliance with security policies.

 

Acknowledgement

We would like to express our gratitude to Ievgen Bondarenko for reporting the vulnerability, collaborating with us to enhance the security of our products, and contributing to our efforts to deliver better service to our customers.

 

Revision History:

VERSION DESCRIPTION RELEASE DATE
1.0 First release October 16, 2026

Relevant Products

AIG-302 Series ·

  •   Print this page
  • You can manage and share your saved list in My Moxa
Let’s get that fixed

If you are concerned about a potential cybersecurity vulnerability, please contact us and one of technical support staff will get in touch with you.

Report a Vulnerability
Added To Bag
You have some items waiting in your bag; click here to finish your quote!
Feedback