# CVE-2022-2979: Omron CX-Programmer

> A use-after-free vulnerability in Omron CX-Programmer allows arbitrary code execution when opening a specially crafted 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:** 12 Sep 2022
- **Updated:** 16 Apr 2025
- **Also known as:** GHSA-cxg8-6xcc-g5fw

## What is CVE-2022-2979?

CVE-2022-2979 is a high-severity use after free vulnerability in Omron CX-Programmer, published on 12 Sep 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

Opening a specially crafted file could cause the affected product to fail to release its memory reference potentially resulting in arbitrary code execution.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2022-2979?

It affects 1 product.


Products: Omron Cx-Programmer.

## How do I fix CVE-2022-2979?

No fix has been published for CVE-2022-2979 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-2979 being exploited?

There is no known exploitation of CVE-2022-2979 in the wild and no public exploit code.

## Other vulnerabilities in Omron 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-2022-2979 and fix it if it is affected.

What it is: CVE-2022-2979 is a high-severity use after free vulnerability in Omron CX-Programmer, published on 12 Sep 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-2022-2979 in the wild and no public exploit code.

Affected product: Omron 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-2022-2979/ (Markdown: https://insights.sbomify.com/CVE-2022-2979/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-2979
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-2979
- OSV: https://osv.dev/vulnerability/CVE-2022-2979

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-2979/
Summaries are generated and may contain mistakes; the official description above is the record.