# CVE-2018-25230: Free IP Switcher 3.1 Denial of Service via Computer Name

> Local attackers can crash Free IP Switcher by inputting an excessively long string in the Computer Name field, causing a buffer overflow.

- **Severity:** Medium 6.8 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **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:** 30 Mar 2026
- **Updated:** 1 Oct 2026
- **Also known as:** GHSA-4853-2382-frfw

## What is CVE-2018-25230?

CVE-2018-25230 is a medium-severity memory corruption vulnerability in Eusing Free IP Switcher, published on 30 Mar 2026. 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

Free IP Switcher 3.1 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Computer Name field. Attackers can paste a malicious payload into the Computer Name input field and click Activate to trigger a denial of service condition that crashes the application.

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

## Which versions are affected by CVE-2018-25230?

It affects 1 product.


Products: Eusing Free Ip Switcher.

## How do I fix CVE-2018-25230?

No fix has been published for CVE-2018-25230 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-25230 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25230 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-25230 and fix it if it is affected.

What it is: CVE-2018-25230 is a medium-severity memory corruption vulnerability in Eusing Free IP Switcher, published on 30 Mar 2026. 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25230 exists.

Affected product: Eusing Free IP Switcher. 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-2018-25230/ (Markdown: https://insights.sbomify.com/CVE-2018-25230/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-25230
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-25230
- OSV: https://osv.dev/vulnerability/CVE-2018-25230

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-25230/
Summaries are generated and may contain mistakes; the official description above is the record.