CVE-2026-109813: A hard-coded cryptographic key vulnerability exists in the `/usr/bin/sysman` of some of Moxa's industrial comp

Routine

HIGH 8.6

CVE-2026-109813 is a high-severity flaw (CVSS 8.6) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.6 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-321
Published	2026-10-16
Last modified	2026-10-16

Publisher (CNA): Moxa Inc.

Last updated 2026-10-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-10-16 03:18 UTCPublished CVE record published
2026-10-16 19:56 UTCUpdated Record last modified

Advisories and coverage

Official advisories

CISA Alerts and Advisories: Moxa AIG-302 ThingsPro Edge 2026-10-20
Canadian Cyber Centre: [Control Systems] Moxa security advisory (AV26-1055) 2026-10-16

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-109813?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-109813 being exploited?

CVE-2026-109813 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-109813 affect?

CVE-2026-109813 affects affected software. Severity is high (CVSS 8.6). 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 comprom

How urgent is CVE-2026-109813?

Priority 31/100. High severity

Software pages

Moxa vulnerabilities

References

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