# CVE-2023-48270: Memory corruption in WBR-6013

> A stack-based buffer overflow in Realtek router SDK allows remote attackers to execute arbitrary code via crafted network requests.

- **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-3hv4-r3g6-p2wr

## What is CVE-2023-48270?

CVE-2023-48270 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

A stack-based buffer overflow vulnerability exists in the boa formDnsv6 functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted series of network requests can lead to arbitrary code execution. An attacker can send a sequence of requests to trigger this vulnerability.

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

## Which versions are affected by CVE-2023-48270?

It affects 2 products.


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

## How do I fix CVE-2023-48270?

No fix has been published for CVE-2023-48270 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-48270 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-48270 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-2023-48270 and fix it if it is affected.

What it is: CVE-2023-48270 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-2023-48270 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-2023-48270/ (Markdown: https://insights.sbomify.com/CVE-2023-48270/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-48270
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-48270
- OSV: https://osv.dev/vulnerability/CVE-2023-48270

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-48270/
Summaries are generated and may contain mistakes; the official description above is the record.