Shared Hard-coded Root CA Private Key

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-109813
StatePUBLISHED
AssignerMoxa
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-16 03:18:02 UTC
Updated2026-10-16 19:56:15 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 8.6 HIGH from [email protected]

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.001530000 probability, percentile 0.040330000 (date 2026-10-16)

Problem Types: CWE-321 | CWE-321 CWE-321: Use of Hard-coded Cryptographic Key

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary8.6HIGHCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS8.6HIGHCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Moxa AIG-302 Series affected 1.0.0 1.4.0 custom Not specified
CNA Moxa AIG-302 Series unaffected 1.4.1 custom Not specified

References

ReferenceSourceLinkTags
www.moxa.com/en/support/product-support/security-advisory/mpsa-262560-cve-... [email protected] www.moxa.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Ievgen Bondarenko (en)

Additional Advisory Data

Solutions

CNA: 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

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