# CVE-2025-27396: Privilege escalation in SCALANCE LPE9403

> An authenticated low-privileged remote attacker can escalate privileges on Siemens SCALANCE LPE9403 devices due to improper privilege limitation.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **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:** 11 Mar 2025
- **Updated:** 11 Mar 2025
- **Also known as:** GHSA-vqjq-9hcq-43hf

## What is CVE-2025-27396?

CVE-2025-27396 is a high-severity vulnerability in Siemens SCALANCE LPE9403, published on 11 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0). Affected devices do not properly limit the elevation of privileges required to perform certain valid functionality.
This could allow an authenticated lowly-privileged remote attacker to escalate their privileges.

Weakness: CWE-273 (Improper Check for Dropped Privileges)

## Which versions are affected by CVE-2025-27396?

It affects 1 product.


Products: Siemens Scalance Lpe9403 Firmware.

## How do I fix CVE-2025-27396?

No fix has been published for CVE-2025-27396 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-27396 being exploited?

There is no known exploitation of CVE-2025-27396 in the wild and no public exploit code.

## Other vulnerabilities in Siemens SCALANCE LPE9403

- [CVE-2023-27407](https://insights.sbomify.com/CVE-2023-27407/): Command injection in SCALANCE LPE9403 (critical 9.9)
- [CVE-2025-27392](https://insights.sbomify.com/CVE-2025-27392/): Command injection in SCALANCE LPE9403 (high 8.6)
- [CVE-2025-27393](https://insights.sbomify.com/CVE-2025-27393/): Command injection in SCALANCE LPE9403 (high 8.6)
- [CVE-2025-27394](https://insights.sbomify.com/CVE-2025-27394/): Command injection in SCALANCE LPE9403 (high 8.6)
- [CVE-2025-27395](https://insights.sbomify.com/CVE-2025-27395/): Path traversal in SCALANCE LPE9403 (high 8.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-27396 and fix it if it is affected.

What it is: CVE-2025-27396 is a high-severity vulnerability in Siemens SCALANCE LPE9403, published on 11 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-27396 in the wild and no public exploit code.

Affected product: Siemens SCALANCE LPE9403. 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-2025-27396/ (Markdown: https://insights.sbomify.com/CVE-2025-27396/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-27396
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-27396
- OSV: https://osv.dev/vulnerability/CVE-2025-27396

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-27396/
Summaries are generated and may contain mistakes; the official description above is the record.