# CVE-2019-10938: Code injection in SIPROTEC 5 devices with CPU variants CP200

> An unauthenticated attacker can inject arbitrary code executed before firmware verification on Siemens SIPROTEC 5 devices and power meters.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Aug 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-5vvv-cppj-rx9m

## What is CVE-2019-10938?

CVE-2019-10938 is a critical code injection vulnerability in Siemens AG SIPROTEC 5 devices with CPU variants CP200, published on 2 Aug 2019. 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 SIPROTEC 5 devices with CPU variants CP200 (All versions < V7.59), SIPROTEC 5 devices with CPU variants CP300 and CP100 (All versions < V8.01), Siemens Power Meters Series 9410 (All versions < V2.2.1), Siemens Power Meters Series 9810 (All versions). An unauthenticated attacker with network access to the device could potentially insert arbitrary code which is executed before firmware verification in the device. At the time of advisory publication no public exploitation of this security vulnerability was known.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2019-10938?

It affects 1 product.


Products: Siemens Siprotec 5 Digsi Device Driver.

## How do I fix CVE-2019-10938?

No fix has been published for CVE-2019-10938 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-10938 being exploited?

There is no known exploitation of CVE-2019-10938 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-10938 and fix it if it is affected.

What it is: CVE-2019-10938 is a critical code injection vulnerability in Siemens AG SIPROTEC 5 devices with CPU variants CP200, published on 2 Aug 2019. 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-2019-10938 in the wild and no public exploit code.

Affected product: Siemens AG SIPROTEC 5 devices with CPU variants CP200. 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-2019-10938/ (Markdown: https://insights.sbomify.com/CVE-2019-10938/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-10938
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-10938
- OSV: https://osv.dev/vulnerability/CVE-2019-10938

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-10938/
Summaries are generated and may contain mistakes; the official description above is the record.