Vulnerability details

CVE-2026-109813

Moxa AIG-302 Series

Shared Hard-coded Root CA Private Key

CVSS 4.0

8.6High

Official description

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.

CVSS scores

Score	Version	Source	Vector
8.6High	4.0	CVEProject cvelistV5 (CNA) (Moxa)	`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`

Affected products

Vendor	Product	Versions	Source
Moxa	AIG-302 Series	1.0.0 ≤ v ≤ 1.4.0	CVEProject cvelistV5 (CNA)

References and advisories

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-262560-cve-2026-109812,-cve-2026-109813-vulnerabilities-in-industrial-computing-products vendor-advisory

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Details

Published: 2026-10-16
Last updated: 2026-10-16
State: Published
Assigner (CNA): Moxa

Exploit prediction (EPSS)

0.16%

Probability of exploitation in 30 days

5.5%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Partial

Weaknesses (CWE)

CWE-321
Use of Hard-coded Cryptographic Key