# CVE-2025-26389: Command injection in OZW672

> Unauthenticated remote attackers can execute arbitrary code with root privileges on Siemens OZW672 and OZW772 devices via unsanitized input in the exportDiagramPage endpoint.

- **Severity:** Critical 10.0 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 May 2025
- **Updated:** 13 May 2025
- **Also known as:** GHSA-mhmm-4g6x-6p5g

## What is CVE-2025-26389?

CVE-2025-26389 is a critical command injection vulnerability in Siemens OZW672, published on 13 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability has been identified in OZW672 (All versions < V8.0), OZW772 (All versions < V8.0). The web service in affected devices does not sanitize the input parameters required for the `exportDiagramPage` endpoint. This could allow an unauthenticated remote attacker to execute arbitrary code with root privileges.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2025-26389?

It affects 2 products.


Products: Siemens Ozw672 Firmware, Siemens Ozw772 Firmware.

## How do I fix CVE-2025-26389?

No fix has been published for CVE-2025-26389 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-26389 being exploited?

There is no known exploitation of CVE-2025-26389 in the wild and no public exploit code.

## Other vulnerabilities in Siemens OZW672

- [CVE-2025-26390](https://insights.sbomify.com/CVE-2025-26390/): SQL injection in OZW672 (critical 9.3)
- [CVE-2024-36140](https://insights.sbomify.com/CVE-2024-36140/): Cross-site scripting in OZW672 (high 8.2)
- [CVE-2019-13941](https://insights.sbomify.com/CVE-2019-13941/): Information disclosure in OZW672 (high 7.5)
- [CVE-2017-6873](https://insights.sbomify.com/CVE-2017-6873/): Security feature bypass in OZW672, OZW772 (high 7.4)
- [CVE-2017-6872](https://insights.sbomify.com/CVE-2017-6872/): Missing authorization in OZW672, OZW772 (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-26389 and fix it if it is affected.

What it is: CVE-2025-26389 is a critical command injection vulnerability in Siemens OZW672, published on 13 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-26389 in the wild and no public exploit code.

Affected product: Siemens OZW672. 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-2025-26389/ (Markdown: https://insights.sbomify.com/CVE-2025-26389/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-26389
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-26389
- OSV: https://osv.dev/vulnerability/CVE-2025-26389

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-26389/
Summaries are generated and may contain mistakes; the official description above is the record.