# CVE-2020-16226: Mitsubishi Electric Multiple Products

> Attackers can impersonate legitimate devices to remotely execute arbitrary commands on Mitsubishi Electric industrial control products.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Oct 2020
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-4548-gq2g-hw87

## What is CVE-2020-16226?

CVE-2020-16226 is a critical authentication bypass vulnerability in Mitsubishi Electric Conveyor Tracking Application, published on 5 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Multiple Mitsubishi Electric products are vulnerable to impersonations of a legitimate device by a malicious actor, which may allow an attacker to remotely execute arbitrary commands.

Weakness: CWE-342 (Predictable Exact Value from Previous Values)

## Which versions are affected by CVE-2020-16226?

It affects 95 products.


Products: Mitsubishielectric Conveyor Tracking Application Apr-Ntr12fh, Mitsubishielectric Conveyor Tracking Application Apr-Ntr20fh\(n\=1\,2\), Mitsubishielectric Conveyor Tracking Application Apr-Ntr3fh, Mitsubishielectric Conveyor Tracking Application Apr-Ntr6fh, Mitsubishielectric Fr-A820-E Firmware, Mitsubishielectric Fr-A840-E Firmware, Mitsubishielectric Fr-A842-E Firmware, Mitsubishielectric Fr-A860-E Firmware, Mitsubishielectric Fr-A862-E Firmware, Mitsubishielectric Fr-A8ncge Firmware, Mitsubishielectric Fr-E800-Epa Firmware, Mitsubishielectric Fr-E800-Epb Firmware, Mitsubishielectric Fr-F820-E Firmware, Mitsubishielectric Fr-F840-E Firmware, Mitsubishielectric Fr-F842-E Firmware, Mitsubishielectric Fr-F860-E Firmware, Mitsubishielectric Fr-F862-E Firmware, Mitsubishielectric Fx3g-14mr\/Ds Firmware, Mitsubishielectric Fx3g-14mr\/Es Firmware, Mitsubishielectric Fx3g-14mt\/Dss Firmware and 75 more.

## How do I fix CVE-2020-16226?

No fix has been published for CVE-2020-16226 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-16226 being exploited?

There is no known exploitation of CVE-2020-16226 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-16226 and fix it if it is affected.

What it is: CVE-2020-16226 is a critical authentication bypass vulnerability in Mitsubishi Electric Conveyor Tracking Application, published on 5 Oct 2020. 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-2020-16226 in the wild and no public exploit code.

Affected product: Mitsubishi Electric Conveyor Tracking Application. 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-2020-16226/ (Markdown: https://insights.sbomify.com/CVE-2020-16226/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-16226
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-16226
- OSV: https://osv.dev/vulnerability/CVE-2020-16226

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-16226/
Summaries are generated and may contain mistakes; the official description above is the record.