# CVE-2020-10137: Denial of service in UZB-7

> Remote attackers can cause denial of service in Z-Wave devices by injecting unauthenticated FIND_NODE_IN_RANGE frames, affecting Silicon Labs 700 series chipsets.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **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:** 9 Jan 2022
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-2m2c-95xg-qw58

## What is CVE-2020-10137?

CVE-2020-10137 is a medium-severity denial of service vulnerability in Silicon Labs UZB-7, published on 9 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Z-Wave devices based on Silicon Labs 700 series chipsets using S2 do not adequately authenticate or encrypt FIND_NODE_IN_RANGE frames, allowing a remote, unauthenticated attacker to inject a FIND_NODE_IN_RANGE frame with an invalid random payload, denying service by blocking the processing of upcoming events.

Weakness: CWE-345 (Insufficient Verification of Data Authenticity)

## Which versions are affected by CVE-2020-10137?

It affects 2 products.


Products: Silabs 700 Series Firmware, Silabs Uzb-7.

## How do I fix CVE-2020-10137?

No fix has been published for CVE-2020-10137 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-10137 being exploited?

There is no known exploitation of CVE-2020-10137 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-10137 and fix it if it is affected.

What it is: CVE-2020-10137 is a medium-severity denial of service vulnerability in Silicon Labs UZB-7, published on 9 Jan 2022. 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-2020-10137 in the wild and no public exploit code.

Affected product: Silicon Labs UZB-7. 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-2020-10137/ (Markdown: https://insights.sbomify.com/CVE-2020-10137/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-10137
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-10137
- OSV: https://osv.dev/vulnerability/CVE-2020-10137

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-10137/
Summaries are generated and may contain mistakes; the official description above is the record.