---
id: CVE-2026-109813
title: Shared Hard-coded Root CA Private Key
summary: "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 comp…"
severity: high
cvss: 8.6
cvssVector: 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-321
vendor: Moxa
product: AIG-302 Series
affected:
  - aig-302_series >= 1.0.0 <= 1.4.0
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T02:57:52.388Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-109813'
references:
  - url: >-
      https://www.moxa.com/en/support/product-support/security-advisory/mpsa-262560-cve-2026-109812,-cve-2026-109813-vulnerabilities-in-industrial-computing-products
tags:
  - cve.org
ingestedAt: '2026-10-16T03:57:49.276Z'
---

## Overview

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.

## Affected

- `aig-302_series >= 1.0.0 <= 1.4.0`

## Remediation

Please refer to Moxa Security Advisory: https://www.moxa.com/en/support/product-support/security-advisory/mpsa-262560-cve-2026-109812,-cve-2026-109813-vulnerabilities-in-industrial-computing-products