# CVE-2026-16436: Auth bypass in AnalytiX

> Remote attackers can bypass authentication using a fixed challenge response to access, modify, or disrupt Mitsubishi Electric SCADA and HMI systems.

- **Severity:** Critical 9.2 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Oct 2026
- **Updated:** 16 Oct 2026
- **Also known as:** GHSA-j5vq-rv93-4ff2

## What is CVE-2026-16436?

CVE-2026-16436 is a critical authentication bypass vulnerability in Mitsubishi Electric Corporation AnalytiX, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Weak Password Recovery Mechanism for Forgotten Password vulnerability in Mitsubishi Electric GENESIS versions 11.03 and prior, GENESIS64 versions 10.97.3 and prior, ICONICS Suite versions 10.97.3 and prior, Hyper Historian versions 10.97.3 and prior, AnalytiX versions 10.97.3 and prior, MobileHMI 10.97.3 and prior, IoTWorX 10.97.3 and prior, MC Works64 all versions, GENESIS32 all versions, BizViz all versions, Mitsubishi Electric Iconics Digital Solutions GENESIS versions 11.03 and prior, GENESIS64 versions 10.97.3 and prior, ICONICS Suite versions 10.97.3 and prior, Hyper Historian versions 10.97.3 and prior, AnalytiX versions 10.97.3 and prior, MobileHMI 10.97.3 and prior, IoTWorX 10.97.3 and prior, GENESIS32 all versions, and BizViz all versions allows a remote attacker to unlock the system by obtaining the challenge response by some means. The challenge response used to unlock the system is common to all users and fixed. As a result, the attacker may disclose, tamper with, destroy, or delete internal information, or cause the affected system to enter a denial-of-service (DoS) condition.

Weakness: CWE-640 (Weak Password Recovery Mechanism for Forgotten Password)

## Which versions are affected by CVE-2026-16436?


## How do I fix CVE-2026-16436?

No fix has been published for CVE-2026-16436 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-16436 being exploited?

There is no known exploitation of CVE-2026-16436 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-16436 and fix it if it is affected.

What it is: CVE-2026-16436 is a critical authentication bypass vulnerability in Mitsubishi Electric Corporation AnalytiX, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-16436 in the wild and no public exploit code.

Affected product: Mitsubishi Electric Corporation AnalytiX. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-16436/ (Markdown: https://insights.sbomify.com/CVE-2026-16436/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-16436
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-16436
- OSV: https://osv.dev/vulnerability/CVE-2026-16436

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-16436/
Summaries are generated and may contain mistakes; the official description above is the record.