# CVE-2023-2686: Memory corruption in Gecko Platform

> A buffer overflow in the Wi-Fi Commissioning example allows a connected device to write payloads onto the stack, potentially enabling code execution.

- **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:** 15 Jun 2023
- **Updated:** 12 Dec 2024
- **Also known as:** GHSA-9h9q-pfmr-rq8w

## What is CVE-2023-2686?

CVE-2023-2686 is a critical memory corruption vulnerability in silabs.com Gecko Platform, published on 15 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Buffer overflow in Wi-Fi Commissioning MicriumOS example in Silicon Labs Gecko SDK v4.2.3 or earlier allows connected device to write payload onto the stack.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2023-2686?

It affects 1 product.


Products: Silabs Gecko Software Development Kit.

## How do I fix CVE-2023-2686?

No fix has been published for CVE-2023-2686 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-2686 being exploited?

There is no known exploitation of CVE-2023-2686 in the wild and no public exploit code.

## Other vulnerabilities in silabs.com Gecko Platform

- [CVE-2023-45318](https://insights.sbomify.com/CVE-2023-45318/): Memory corruption in Gecko Platform (critical 10.0)
- [CVE-2023-4280](https://insights.sbomify.com/CVE-2023-4280/): Unvalidated input in Silicon Labs TrustZone implementation leads to accessing Trusted memory region (critical 9.3)
- [CVE-2023-4020](https://insights.sbomify.com/CVE-2023-4020/): Unvalidated input in Silicon Labs PSA Attestation service leads to secure memory access from non-secure memory (critical 9.0)
- [CVE-2023-25181](https://insights.sbomify.com/CVE-2023-25181/): Memory corruption in Cesium NET (critical 9.0)
- [CVE-2023-27882](https://insights.sbomify.com/CVE-2023-27882/): Memory corruption in Cesium NET (critical 9.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-2686 and fix it if it is affected.

What it is: CVE-2023-2686 is a critical memory corruption vulnerability in silabs.com Gecko Platform, published on 15 Jun 2023. 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-2023-2686 in the wild and no public exploit code.

Affected product: silabs.com Gecko Platform. 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-2023-2686/ (Markdown: https://insights.sbomify.com/CVE-2023-2686/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2686
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2686
- OSV: https://osv.dev/vulnerability/CVE-2023-2686

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-2686/
Summaries are generated and may contain mistakes; the official description above is the record.