# CVE-2023-41028: Juplink RX4-1500 Stack-based Buffer Overflow Vulnerability

> An authenticated attacker can exploit a stack-based buffer overflow in Juplink RX4-1500 routers to execute arbitrary code with root privileges.

- **Severity:** Critical 9.0 (`CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Aug 2023
- **Updated:** 3 Oct 2024
- **Also known as:** GHSA-9vvm-hf5j-x32h

## What is CVE-2023-41028?

CVE-2023-41028 is a critical memory corruption vulnerability in Juplink RX4-1500, published on 23 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A stack-based buffer overflow exists in Juplink RX4-1500, a WiFi router, in versions 1.0.2 through 1.0.5. An authenticated attacker can exploit this vulnerability to achieve code execution as root.

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

## Which versions are affected by CVE-2023-41028?

It affects 1 product.


Products: Juplink Rx4-1500 Firmware.

## How do I fix CVE-2023-41028?

No fix has been published for CVE-2023-41028 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-41028 being exploited?

There is no known exploitation of CVE-2023-41028 in the wild and no public exploit code.

## Other vulnerabilities in Juplink RX4-1500

- [CVE-2023-41027](https://insights.sbomify.com/CVE-2023-41027/): Juplink RX4-1500 Credential Disclosure Vulnerability (high 8.0)
- [CVE-2023-41029](https://insights.sbomify.com/CVE-2023-41029/): Juplink RX4-1500 Command Injection Vulnerability (high 8.0)
- [CVE-2023-41031](https://insights.sbomify.com/CVE-2023-41031/): Juplink RX4-1500 homemng.htm Command Injection Vulnerability (high 8.0)
- [CVE-2020-8797](https://insights.sbomify.com/CVE-2020-8797/): Command injection in n/a (medium 6.7)
- [CVE-2023-41030](https://insights.sbomify.com/CVE-2023-41030/): Juplink RX4-1500 Hard-coded Credential Vulnerability (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-41028 and fix it if it is affected.

What it is: CVE-2023-41028 is a critical memory corruption vulnerability in Juplink RX4-1500, published on 23 Aug 2023. 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-2023-41028 in the wild and no public exploit code.

Affected product: Juplink RX4-1500. 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-2023-41028/ (Markdown: https://insights.sbomify.com/CVE-2023-41028/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-41028
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-41028
- OSV: https://osv.dev/vulnerability/CVE-2023-41028

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-41028/
Summaries are generated and may contain mistakes; the official description above is the record.