# CVE-2023-50239: Memory corruption in WBR-6013

> Attackers can achieve remote code execution on Realtek-based routers via stack-based buffer overflows in the RadvdInterfaceParam functionality.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Jul 2024
- **Updated:** 4 Nov 2025
- **Also known as:** GHSA-57c8-xcw6-x8h7

## What is CVE-2023-50239?

CVE-2023-50239 is a high-severity memory corruption vulnerability in LevelOne WBR-6013, published on 8 Jul 2024. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Two stack-based buffer overflow vulnerabilities exist in the boa set_RadvdInterfaceParam functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted series of network requests can lead to remote code execution. An attacker can send a sequence of requests to trigger these vulnerabilities.This stack-based buffer overflow is related to the `interfacename` request's parameter.

Weakness: CWE-787 (Out-of-bounds Write), CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2023-50239?

It affects 2 products.


Products: Level1 Wbr-6013 Firmware, Realtek Rtl819x Jungle Software Development Kit.

## How do I fix CVE-2023-50239?

No fix has been published for CVE-2023-50239 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-50239 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-50239 exists.

## Other vulnerabilities in LevelOne WBR-6013

- [CVE-2023-46685](https://insights.sbomify.com/CVE-2023-46685/): Hardcoded credentials in WBR-6013 (critical 9.8)
- [CVE-2023-47677](https://insights.sbomify.com/CVE-2023-47677/): Cross-site request forgery in WBR-6013 (high 8.8)
- [CVE-2023-34435](https://insights.sbomify.com/CVE-2023-34435/): File upload in WBR-6013 (high 7.2)
- [CVE-2023-41251](https://insights.sbomify.com/CVE-2023-41251/): Memory corruption in WBR-6013 (high 7.2)
- [CVE-2023-45215](https://insights.sbomify.com/CVE-2023-45215/): Memory corruption in WBR-6013 (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-50239 and fix it if it is affected.

What it is: CVE-2023-50239 is a high-severity memory corruption vulnerability in LevelOne WBR-6013, published on 8 Jul 2024. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-50239 exists.

Affected product: LevelOne WBR-6013. 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-2023-50239/ (Markdown: https://insights.sbomify.com/CVE-2023-50239/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-50239
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-50239
- OSV: https://osv.dev/vulnerability/CVE-2023-50239

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-50239/
Summaries are generated and may contain mistakes; the official description above is the record.