# CVE-2026-16438: An arbitrary operation vulnerability in GENESIS64, ICONICS Suite, Hyper Historian, AnalytiX, MobileHMI, and MC Works64

> Attackers with admin access can bypass UAC to execute DCOM objects, leading to privilege escalation and data compromise in Mitsubishi SCADA systems.

- **Severity:** Critical 9.4 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Oct 2026
- **Updated:** 16 Oct 2026
- **Also known as:** GHSA-qcw9-8pcc-76g9

## What is CVE-2026-16438?

CVE-2026-16438 is a critical vulnerability in Mitsubishi Electric Corporation AnalytiX, published on 15 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Incorrect Privilege Assignment vulnerability in Mitsubishi Electric 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, MC Works64 all versions, Mitsubishi Electric Iconics Digital Solutions 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, and MobileHMI 10.97.3 and prior allows an attacker who can log in using the same administrator account for the affected products to launch and operate DCOM objects locally or remotely. During installation, the installers of the affected products unnecessarily grant default DCOM permissions to the administrator account of the affected products. Users with that administrator accounts can locally or remotely launch and operate DCOM objects that should require UAC elevation. 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-266 (Incorrect Privilege Assignment)

## Which versions are affected by CVE-2026-16438?


## How do I fix CVE-2026-16438?

No fix has been published for CVE-2026-16438 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-16438 being exploited?

There is no known exploitation of CVE-2026-16438 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-16438 and fix it if it is affected.

What it is: CVE-2026-16438 is a critical vulnerability in Mitsubishi Electric Corporation AnalytiX, published on 15 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-16438 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-2026-16438/ (Markdown: https://insights.sbomify.com/CVE-2026-16438/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-16438
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-16438
- OSV: https://osv.dev/vulnerability/CVE-2026-16438

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-16438/
Summaries are generated and may contain mistakes; the official description above is the record.