# CVE-2022-43667: Memory corruption in CX-Programmer

> A stack-based buffer overflow in OMRON CX-Programmer allows arbitrary code execution or information disclosure when a user opens a malicious CXP file.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 7 Dec 2022
- **Updated:** 23 Apr 2025
- **Also known as:** GHSA-3259-r88x-8729

## What is CVE-2022-43667?

CVE-2022-43667 is a high-severity memory corruption vulnerability in OMRON Corporation CX-Programmer, published on 7 Dec 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Stack-based buffer overflow vulnerability exists in CX-Programmer v.9.77 and earlier, which may lead to information disclosure and/or arbitrary code execution by having a user to open a specially crafted CXP file.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2022-43667?

It affects 1 product.


Products: Omron Cx-Programmer.

## How do I fix CVE-2022-43667?

No fix has been published for CVE-2022-43667 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-43667 being exploited?

There is no known exploitation of CVE-2022-43667 in the wild and no public exploit code.

## Other vulnerabilities in OMRON Corporation CX-Programmer

- [CVE-2023-22277](https://insights.sbomify.com/CVE-2023-22277/): Use after free in CX-Programmer (high 7.8)
- [CVE-2023-22314](https://insights.sbomify.com/CVE-2023-22314/): Use after free in CX-Programmer (high 7.8)
- [CVE-2023-22317](https://insights.sbomify.com/CVE-2023-22317/): Use after free in CX-Programmer (high 7.8)
- [CVE-2023-38746](https://insights.sbomify.com/CVE-2023-38746/): Memory corruption in CX-Programmer (high 7.8)
- [CVE-2023-38747](https://insights.sbomify.com/CVE-2023-38747/): Memory corruption in CX-Programmer (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-43667 and fix it if it is affected.

What it is: CVE-2022-43667 is a high-severity memory corruption vulnerability in OMRON Corporation CX-Programmer, published on 7 Dec 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-43667 in the wild and no public exploit code.

Affected product: OMRON Corporation CX-Programmer. 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-2022-43667/ (Markdown: https://insights.sbomify.com/CVE-2022-43667/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-43667
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-43667
- OSV: https://osv.dev/vulnerability/CVE-2022-43667

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-43667/
Summaries are generated and may contain mistakes; the official description above is the record.