# CVE-2019-10939: A vulnerability has been identified in TIM 3V-IE (incl.


- **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
- **Fix available:** No
- **Published:** 14 Apr 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-xr59-cc47-hgh5

## What is CVE-2019-10939?

CVE-2019-10939 is a critical vulnerability in Siemens AG TIM 3V-IE (incl. SIPLUS NET variants), published on 14 Apr 2020. 

### Official description

A vulnerability has been identified in TIM 3V-IE (incl. SIPLUS NET variants) (All versions < V2.8), TIM 3V-IE Advanced (incl. SIPLUS NET variants) (All versions < V2.8), TIM 3V-IE DNP3 (incl. SIPLUS NET variants) (All versions < V3.3), TIM 4R-IE (incl. SIPLUS NET variants) (All versions < V2.8), TIM 4R-IE DNP3 (incl. SIPLUS NET variants) (All versions < V3.3). The affected versions contain an open debug port that is available under certain specific conditions. The vulnerability is only available if the IP address is configured to 192.168.1.2. If available, the debug port could be exploited by an attacker with network access to the device. No user interaction is required to exploit this vulnerability. The vulnerability impacts confidentiality, integrity, and availability of the affected device. At the stage of publishing this security advisory no public exploitation is known.

Weakness: CWE-489 (Active Debug Code)

## Which versions are affected by CVE-2019-10939?

It affects 5 products.


Products: Siemens Tim 3v-Ie Advanced Firmware, Siemens Tim 3v-Ie Dnp3 Firmware, Siemens Tim 3v-Ie Firmware, Siemens Tim 4r-Ie Dnp3 Firmware, Siemens Tim 4r-Ie Firmware.

## How do I fix CVE-2019-10939?

No fix has been published for CVE-2019-10939 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-10939 being exploited?

There is no known exploitation of CVE-2019-10939 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-10939 and fix it if it is affected.

What it is: CVE-2019-10939 is a critical vulnerability in Siemens AG TIM 3V-IE (incl. SIPLUS NET variants), published on 14 Apr 2020. 
Exploitation: There is no known exploitation of CVE-2019-10939 in the wild and no public exploit code.

Affected product: Siemens AG TIM 3V-IE (incl. SIPLUS NET variants). 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-2019-10939/ (Markdown: https://insights.sbomify.com/CVE-2019-10939/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-10939
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-10939
- OSV: https://osv.dev/vulnerability/CVE-2019-10939

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-10939/
Summaries are generated and may contain mistakes; the official description above is the record.