# CVE-2022-28613: Specially Crafted Modbus TCP Packet Vulnerability in RTU500 series

> An attacker can cause a denial of service by sending a specially crafted Modbus TCP packet to the RTU500 series CMU.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:** 2 May 2022
- **Updated:** 25 Sep 2024
- **Also known as:** GHSA-9m5v-m5wp-xcm2

## What is CVE-2022-28613?

CVE-2022-28613 is a high-severity denial of service vulnerability in Hitachi Energy RTU500 series CMU Firmware, published on 2 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability exists in the HCI Modbus TCP function included in the product versions listed above. If the HCI Modbus TCP is en-abled and configured, an attacker could exploit the vulnerability by sending a specially crafted message to the RTU500, causing the receiving RTU500 CMU to reboot. The vulnerability is caused by the validation error in the length information carried in MBAP header in the HCI Modbus TCP function.

Weakness: CWE-1284 (Improper Validation of Specified Quantity in Input)

## Which versions are affected by CVE-2022-28613?

It affects 2 products.


Products: Abb Rtu500 Firmware, Hitachienergy Rtu500 Firmware.

## How do I fix CVE-2022-28613?

No fix has been published for CVE-2022-28613 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-28613 being exploited?

There is no known exploitation of CVE-2022-28613 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-28613 and fix it if it is affected.

What it is: CVE-2022-28613 is a high-severity denial of service vulnerability in Hitachi Energy RTU500 series CMU Firmware, published on 2 May 2022. 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-2022-28613 in the wild and no public exploit code.

Affected product: Hitachi Energy RTU500 series CMU Firmware. 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-2022-28613/ (Markdown: https://insights.sbomify.com/CVE-2022-28613/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-28613
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-28613
- OSV: https://osv.dev/vulnerability/CVE-2022-28613

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-28613/
Summaries are generated and may contain mistakes; the official description above is the record.