# CVE-2020-7592: Information disclosure in SIMATIC HMI Basic Panels 1st Generation (incl. SIPLUS variants)

> Attackers can capture sensitive information from unencrypted communication between configuration software and Siemens HMI devices.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Jul 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-mhgv-m547-f82g

## What is CVE-2020-7592?

CVE-2020-7592 is a medium-severity vulnerability in Siemens AG SIMATIC HMI Basic Panels 1st Generation (incl. SIPLUS variants), published on 14 Jul 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability has been identified in SIMATIC HMI Basic Panels 1st Generation (incl. SIPLUS variants) (All versions), SIMATIC HMI Basic Panels 2nd Generation (incl. SIPLUS variants) (All versions), SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions), SIMATIC HMI KTP700F Mobile Arctic (All versions), SIMATIC HMI Mobile Panels 2nd Generation (All versions), SIMATIC WinCC Runtime Advanced (All versions). Unencrypted communication between the configuration software and the respective device could allow an attacker to capture potential plain text communication and have access to sensitive information.

Weakness: CWE-319 (Cleartext Transmission of Sensitive Information)

## Which versions are affected by CVE-2020-7592?

It affects 6 products.


Products: Siemens Simatic Hmi Basic Panels 1st Generation, Siemens Simatic Hmi Basic Panels 2nd Generation, Siemens Simatic Hmi Comfort Panels Firmware, Siemens Simatic Hmi Ktp700f Mobile Arctic Firmware, Siemens Simatic Hmi Mobile Panels 2nd Generation Firmware, Siemens Simatic Wincc Runtime Advanced.

## How do I fix CVE-2020-7592?

No fix has been published for CVE-2020-7592 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-7592 being exploited?

There is no known exploitation of CVE-2020-7592 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-7592 and fix it if it is affected.

What it is: CVE-2020-7592 is a medium-severity vulnerability in Siemens AG SIMATIC HMI Basic Panels 1st Generation (incl. SIPLUS variants), published on 14 Jul 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-7592 in the wild and no public exploit code.

Affected product: Siemens AG SIMATIC HMI Basic Panels 1st Generation (incl. SIPLUS 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-2020-7592/ (Markdown: https://insights.sbomify.com/CVE-2020-7592/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-7592
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-7592
- OSV: https://osv.dev/vulnerability/CVE-2020-7592

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-7592/
Summaries are generated and may contain mistakes; the official description above is the record.