# CVE-2023-48316: Azure RTOS NetX Duo Remote Code Execution Vulnerability

> An attacker can achieve remote code execution via memory overflow vulnerabilities in Azure RTOS NetX Duo network stack components.

- **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:** 5 Dec 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-3cmf-r288-xhwq

## What is CVE-2023-48316?

CVE-2023-48316 is a critical memory corruption vulnerability in azure-rtos netxduo, published on 5 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Azure RTOS NetX Duo is a TCP/IP network stack designed specifically for deeply embedded real-time and IoT applications. An attacker can cause remote code execution due to memory overflow vulnerabilities in Azure RTOS NETX Duo. The affected components include processes/functions related to snmp, smtp, ftp and dtls in RTOS v6.2.1 and below. The fixes have been included in NetX Duo release 6.3.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-825 (Expired Pointer Dereference), CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2023-48316?

It affects 1 product.


Products: Microsoft Azure Rtos Netx Duo.

## How do I fix CVE-2023-48316?

No fix has been published for CVE-2023-48316 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-48316 being exploited?

There is no known exploitation of CVE-2023-48316 in the wild and no public exploit code.

## Other vulnerabilities in azure-rtos netxduo

- [CVE-2023-48692](https://insights.sbomify.com/CVE-2023-48692/): Azure RTOS NetX Duo Remote Code Execution Vulnerability (critical 9.1)
- [CVE-2023-48315](https://insights.sbomify.com/CVE-2023-48315/): Azure RTOS NetX Duo Remote Code Execution Vulnerability (high 8.8)
- [CVE-2023-48691](https://insights.sbomify.com/CVE-2023-48691/): Azure RTOS NetX Duo Remote Code Execution Vulnerability (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-48316 and fix it if it is affected.

What it is: CVE-2023-48316 is a critical memory corruption vulnerability in azure-rtos netxduo, published on 5 Dec 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-2023-48316 in the wild and no public exploit code.

Affected product: azure-rtos netxduo. 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-2023-48316/ (Markdown: https://insights.sbomify.com/CVE-2023-48316/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-48316
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-48316
- OSV: https://osv.dev/vulnerability/CVE-2023-48316

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-48316/
Summaries are generated and may contain mistakes; the official description above is the record.