# CVE-2023-2262: Rockwell Automation Select Logix Communication Modules Vulnerable to Email Object Buffer Overflow

> A buffer overflow in Rockwell Automation communication modules allows remote code execution via malicious CIP requests.

- **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:** 20 Sep 2023
- **Updated:** 25 Sep 2024
- **Also known as:** GHSA-hvf2-xrfv-gr9f

## What is CVE-2023-2262?

CVE-2023-2262 is a critical memory corruption vulnerability in Rockwell Auotmation 1756-EN2F Series A, B, published on 20 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A buffer overflow vulnerability exists in the Rockwell Automation select 1756-EN* communication devices. If exploited, a threat actor could potentially leverage this vulnerability to perform a remote code execution. To exploit this vulnerability, a threat actor would have to send a maliciously crafted CIP request to device.

Weakness: CWE-787 (Out-of-bounds Write), CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2023-2262?

It affects 33 products.


Products: Rockwellautomation 1756-En2f Series a Firmware, Rockwellautomation 1756-En2f Series B Firmware, Rockwellautomation 1756-En2f Series C Firmware, Rockwellautomation 1756-En2fk Series a Firmware, Rockwellautomation 1756-En2fk Series B Firmware, Rockwellautomation 1756-En2fk Series C Firmware, Rockwellautomation 1756-En2t Series a Firmware, Rockwellautomation 1756-En2t Series B Firmware, Rockwellautomation 1756-En2t Series C Firmware, Rockwellautomation 1756-En2t Series D Firmware, Rockwellautomation 1756-En2tk Series a Firmware, Rockwellautomation 1756-En2tk Series B Firmware, Rockwellautomation 1756-En2tk Series C Firmware, Rockwellautomation 1756-En2tp Series a Firmware, Rockwellautomation 1756-En2tpk Series a Firmware, Rockwellautomation 1756-En2tpxt Series a Firmware, Rockwellautomation 1756-En2tr Series a Firmware, Rockwellautomation 1756-En2tr Series B Firmware, Rockwellautomation 1756-En2tr Series C Firmware, Rockwellautomation 1756-En2trk Series a Firmware and 13 more.

## How do I fix CVE-2023-2262?

No fix has been published for CVE-2023-2262 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-2262 being exploited?

There is no known exploitation of CVE-2023-2262 in the wild and no public exploit code.

## Other vulnerabilities in Rockwell Auotmation 1756-EN2F Series A, B

- [CVE-2023-3595](https://insights.sbomify.com/CVE-2023-3595/): Rockwell Automation ControlLogix Communication Modules Vulnerable to Remote Code Execution (critical 9.8)
- [CVE-2018-17924](https://insights.sbomify.com/CVE-2018-17924/): Missing authorization in Rockwell Automation (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-2262 and fix it if it is affected.

What it is: CVE-2023-2262 is a critical memory corruption vulnerability in Rockwell Auotmation 1756-EN2F Series A, B, published on 20 Sep 2023. 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-2023-2262 in the wild and no public exploit code.

Affected product: Rockwell Auotmation 1756-EN2F Series A, B. 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-2023-2262/ (Markdown: https://insights.sbomify.com/CVE-2023-2262/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2262
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2262
- OSV: https://osv.dev/vulnerability/CVE-2023-2262

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-2262/
Summaries are generated and may contain mistakes; the official description above is the record.