---
title: "CVE-2026-16436: Mitsubishi Electric GENESIS - Authentication Bypass"
description: "Mitsubishi Electric GENESIS, GENESIS64, ICONICS Suite, Hyper Historian, AnalytiX, MobileHMI, IoTWorX, MC Works64, GENESIS32, and BizViz (various versions) contain a weak password recovery mechanism caused by a fixed, common challenge response, letting remote attackers unlock the system, exploit requires obtaining the challenge response."
url: https://panop.io/threat-heartbeat/CVE-2026-16436/
---

# CVE-2026-16436 Mitsubishi Electric GENESIS - Authentication Bypass

Mitsubishi Electric GENESIS, GENESIS64, ICONICS Suite, Hyper Historian, AnalytiX, MobileHMI, IoTWorX, MC Works64, GENESIS32, and BizViz (various versions) contain a weak password recovery mechanism caused by a fixed, common challenge response, letting remote attackers unlock the system, exploit requires obtaining the challenge response.

CVSS base score 9.2 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-16436)

## Details

Type

Authentication Bypass

Impact

Information Disclosure, Data Tampering, Denial Of Service

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/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

Published

15 October 2026

Updated

15 October 2026

Weakness

[CWE-640](https://cwe.mitre.org/data/definitions/640.html)

## Vendor fix

Update to the latest available versions with improved password recovery mechanisms.

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-2026-16436](https://nvd.nist.gov/vuln/detail/CVE-2026-16436)
- [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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