# CVE-2024-50596: Integer overflow in X-CUBE-AZRT-H7RS

> A remote attacker can cause a denial of service in STMicroelectronics X-CUBE-AZRTOS-WL via a crafted HTTP PUT request triggering an integer underflow.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Apr 2025
- **Updated:** 3 Nov 2025
- **Also known as:** GHSA-8p6x-gw4x-w3jp

## What is CVE-2024-50596?

CVE-2024-50596 is a medium-severity vulnerability in STMicroelectronics X-CUBE-AZRT-H7RS, published on 2 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An integer underflow vulnerability exists in the HTTP server PUT request functionality of STMicroelectronics X-CUBE-AZRTOS-WL 2.0.0. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability affects the NetX Duo Web Component HTTP Server implementation which can be found in x-cube-azrtos-f7\Middlewares\ST\netxduo\addons\web\nx_web_http_server.c

Weakness: CWE-191 (Integer Underflow (Wrap or Wraparound))

## Which versions are affected by CVE-2024-50596?

It affects 10 products.


Products: St X-Cube-Azrt-H7rs, St X-Cube-Azrtos-F4, St X-Cube-Azrtos-F7, St X-Cube-Azrtos-G0, St X-Cube-Azrtos-G4, St X-Cube-Azrtos-H7, St X-Cube-Azrtos-L4, St X-Cube-Azrtos-L5, St X-Cube-Azrtos-Wb, St X-Cube-Azrtos-Wl.

## How do I fix CVE-2024-50596?

No fix has been published for CVE-2024-50596 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-50596 being exploited?

There is no known exploitation of CVE-2024-50596 in the wild and no public exploit code.

## Other vulnerabilities in STMicroelectronics X-CUBE-AZRT-H7RS

- [CVE-2024-45064](https://insights.sbomify.com/CVE-2024-45064/): Memory corruption in X-CUBE-AZRT-H7RS (high 8.5)
- [CVE-2024-50384](https://insights.sbomify.com/CVE-2024-50384/): Denial of service in X-CUBE-AZRT-H7RS (medium 6.5)
- [CVE-2024-50385](https://insights.sbomify.com/CVE-2024-50385/): Denial of service in X-CUBE-AZRT-H7RS (medium 6.5)
- [CVE-2024-50594](https://insights.sbomify.com/CVE-2024-50594/): Integer overflow in X-CUBE-AZRT-H7RS (medium 4.3)
- [CVE-2024-50595](https://insights.sbomify.com/CVE-2024-50595/): Integer overflow in X-CUBE-AZRT-H7RS (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-50596 and fix it if it is affected.

What it is: CVE-2024-50596 is a medium-severity vulnerability in STMicroelectronics X-CUBE-AZRT-H7RS, published on 2 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-50596 in the wild and no public exploit code.

Affected product: STMicroelectronics X-CUBE-AZRT-H7RS. 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-2024-50596/ (Markdown: https://insights.sbomify.com/CVE-2024-50596/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-50596
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-50596
- OSV: https://osv.dev/vulnerability/CVE-2024-50596

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-50596/
Summaries are generated and may contain mistakes; the official description above is the record.