# CVE-2023-5275: Denial of service in GX Works2

> An attacker with local access can cause a denial-of-service condition in GX Works2 by sending specially crafted packets to the simulation function.

- **Severity:** Low 2.5 (`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Nov 2023
- **Updated:** 25 Feb 2026
- **Also known as:** GHSA-v5pp-cp7q-jj25

## What is CVE-2023-5275?

CVE-2023-5275 is a low-severity denial of service vulnerability in Mitsubishi Electric Corporation GX Works2, published on 21 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper Input Validation vulnerability in simulation function of GX Works2 allows an attacker to cause a denial-of-service (DoS) condition on the function by sending specially crafted packets. However, the attacker would need to send the packets from within the same personal computer where the function is running.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2023-5275?

It affects 1 product.


Products: Mitsubishielectric Gx Works2.

## How do I fix CVE-2023-5275?

No fix has been published for CVE-2023-5275 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-5275 being exploited?

There is no known exploitation of CVE-2023-5275 in the wild and no public exploit code.

## Other vulnerabilities in Mitsubishi Electric Corporation GX Works2

- [CVE-2021-20608](https://insights.sbomify.com/CVE-2021-20608/): Denial of service in GX Works2 (high 7.5)
- [CVE-2023-5274](https://insights.sbomify.com/CVE-2023-5274/): Denial of service in GX Works2 (low 2.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-5275 and fix it if it is affected.

What it is: CVE-2023-5275 is a low-severity denial of service vulnerability in Mitsubishi Electric Corporation GX Works2, published on 21 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-5275 in the wild and no public exploit code.

Affected product: Mitsubishi Electric Corporation GX Works2. 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-2023-5275/ (Markdown: https://insights.sbomify.com/CVE-2023-5275/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-5275
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-5275
- OSV: https://osv.dev/vulnerability/CVE-2023-5275

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-5275/
Summaries are generated and may contain mistakes; the official description above is the record.