# CVE-2020-25193: GE Reason RT43X Clocks Use of Hard-coded Cryptographic Key

> Attackers can intercept and decrypt HTTPS traffic from GE Reason GNSS clocks by using a hard-coded cryptographic key found in the firmware.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Mar 2022
- **Updated:** 16 Apr 2025
- **Also known as:** GHSA-q58v-2vrw-x3xh

## What is CVE-2020-25193?

CVE-2020-25193 is a medium-severity vulnerability in GE Reason RT43X Clocks, published on 18 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

By having access to the hard-coded cryptographic key for GE Reason RT430, RT431 & RT434 GNSS clocks in firmware versions prior to version 08A06, attackers would be able to intercept and decrypt encrypted traffic through an HTTPS connection.

Weakness: CWE-798 (Use of Hard-coded Credentials), CWE-321 (Use of Hard-coded Cryptographic Key)

## Which versions are affected by CVE-2020-25193?

It affects 3 products.


Products: Ge Rt430 Firmware, Ge Rt431 Firmware, Ge Rt434 Firmware.

## How do I fix CVE-2020-25193?

No fix has been published for CVE-2020-25193 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-25193 being exploited?

There is no known exploitation of CVE-2020-25193 in the wild and no public exploit code.

## Other vulnerabilities in GE Reason RT43X Clocks

- [CVE-2020-25197](https://insights.sbomify.com/CVE-2020-25197/): GE Reason RT43X Clocks Code Injection (critical 9.8)
- [CVE-2020-12017](https://insights.sbomify.com/CVE-2020-12017/): Auth bypass in GE Grid Solutions Reason RT Clocks (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-25193 and fix it if it is affected.

What it is: CVE-2020-25193 is a medium-severity vulnerability in GE Reason RT43X Clocks, published on 18 Mar 2022. 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-2020-25193 in the wild and no public exploit code.

Affected product: GE Reason RT43X Clocks. 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-2020-25193/ (Markdown: https://insights.sbomify.com/CVE-2020-25193/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-25193
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-25193
- OSV: https://osv.dev/vulnerability/CVE-2020-25193

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-25193/
Summaries are generated and may contain mistakes; the official description above is the record.