# CVE-2018-25048: Codesys Runtime Improper Limitation of a Pathname

> Remote low-privileged attackers can exploit path traversal in CODESYS Runtime to read, modify system files, or cause denial of service.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Mar 2023
- **Updated:** 19 Feb 2025
- **Also known as:** GHSA-4wf9-5wgg-q5qq

## What is CVE-2018-25048?

CVE-2018-25048 is a high-severity path traversal vulnerability in CODESYS  Control for emPC-A/iMX6, published on 23 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The CODESYS runtime system in multiple versions allows an remote low privileged attacker to use a path traversal vulnerability to access and modify all system files as well as DoS the device.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2018-25048?

It affects 15 products.


Products: Codesys Control for Beaglebone, Codesys Control for Empc-A\/Imx6, Codesys Control for Iot2000, Codesys Control for Pfc100, Codesys Control for Pfc200, Codesys Control for Raspberry Pi, Codesys Control Rte, Codesys Control V3 Runtime System Toolkit, Codesys Control Win, Codesys Embedded Target Visu Toolkit, Codesys Hmi, Codesys Remote Target Visu Toolkit, Codesys Runtime Plcwinnt, Codesys Runtime System Toolkit, Codesys Simulation Runtime.

## How do I fix CVE-2018-25048?

No fix has been published for CVE-2018-25048 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-25048 being exploited?

There is no known exploitation of CVE-2018-25048 in the wild and no public exploit code.

## Other vulnerabilities in CODESYS  Control for emPC-A/iMX6

- [CVE-2020-10245](https://insights.sbomify.com/CVE-2020-10245/): Memory corruption in n/a (critical 9.8)
- [CVE-2019-18858](https://insights.sbomify.com/CVE-2019-18858/): Memory corruption in n/a (critical 9.8)
- [CVE-2019-13548](https://insights.sbomify.com/CVE-2019-13548/): Memory corruption in CODESYS V3 web server (critical 9.8)
- [CVE-2019-9008](https://insights.sbomify.com/CVE-2019-9008/): Privilege escalation in n/a (high 8.8)
- [CVE-2020-12069](https://insights.sbomify.com/CVE-2020-12069/): CODESYS V3 prone to Inadequate Password Hashing (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-25048 and fix it if it is affected.

What it is: CVE-2018-25048 is a high-severity path traversal vulnerability in CODESYS  Control for emPC-A/iMX6, published on 23 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-25048 in the wild and no public exploit code.

Affected product: CODESYS  Control for emPC-A/iMX6. 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-2018-25048/ (Markdown: https://insights.sbomify.com/CVE-2018-25048/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-25048
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-25048
- OSV: https://osv.dev/vulnerability/CVE-2018-25048

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-25048/
Summaries are generated and may contain mistakes; the official description above is the record.