---
title: "CVE-2026-16438: Mitsubishi Electric GENESIS64 - Incorrect Privilege Assignment"
description: "Mitsubishi Electric GENESIS64, ICONICS Suite, Hyper Historian, AnalytiX, MobileHMI, and MC Works64 (all versions or <= 10.97.3) contain an incorrect privilege assignment caused by default DCOM permissions granted to administrator accounts, letting logged-in administrators locally or remotely launch and operate DCOM objects without UAC elevation, exploit requires attacker to log in with administrator account."
url: https://panop.io/threat-heartbeat/CVE-2026-16438/
---

# CVE-2026-16438 Mitsubishi Electric GENESIS64 - Incorrect Privilege Assignment

Mitsubishi Electric GENESIS64, ICONICS Suite, Hyper Historian, AnalytiX, MobileHMI, and MC Works64 (all versions or <= 10.97.3) contain an incorrect privilege assignment caused by default DCOM permissions granted to administrator accounts, letting logged-in administrators locally or remotely launch and operate DCOM objects without UAC elevation, exploit requires attacker to log in with administrator account.

CVSS base score 9.4 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-16438)

## Details

Type

Incorrect Privilege Assignment

Impact

Information Disclosure, Data Tampering, Denial Of Service

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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

Published

15 October 2026

Updated

15 October 2026

Weakness

[CWE-266](https://cwe.mitre.org/data/definitions/266.html)

## Vendor fix

Update to the latest available version where DCOM permissions are properly restricted.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-16438](https://nvd.nist.gov/vuln/detail/CVE-2026-16438)
- [https://jvn.jp/vu/JVNVU#93251594/](https://jvn.jp/vu/JVNVU#93251594/)
- [https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2026-006\_en.pdf](https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2026-006_en.pdf)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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