# CVE-2025-55096: Inadequate bounds check and potential underflow in _ux_host_class_hid_report_descriptor_get()

> An integer underflow in the USBX HID descriptor parser can lead to out-of-bounds reads, potentially causing denial of service or information disclosure in ThreadX-based systems.

- **Severity:** Low 2.1 (`CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Oct 2025
- **Updated:** 17 Oct 2025

## What is CVE-2025-55096?

CVE-2025-55096 is a low-severity vulnerability in Eclipse Foundation NetX Duo, published on 17 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In USBX before 6.4.3, the USB support module for Eclipse Foundation ThreadX, there was a potential out of bound read issue in _ux_host_class_hid_report_descriptor_get()
 when parsing a descriptor of an USB HID device.

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

## Which versions are affected by CVE-2025-55096?

It affects 1 product.


Products: Eclipse Threadx Usbx.

## How do I fix CVE-2025-55096?

No fix has been published for CVE-2025-55096 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-55096 being exploited?

There is no known exploitation of CVE-2025-55096 in the wild and no public exploit code.

## Other vulnerabilities in Eclipse Foundation NetX Duo

- [CVE-2022-29246](https://insights.sbomify.com/CVE-2022-29246/): Potential buffer overflow in function DFU upload in Azure RTOS USBX (critical 9.8)
- [CVE-2022-39293](https://insights.sbomify.com/CVE-2022-39293/): Azure RTOS USBX Host PIMA vulnerable to read integer underflow with buffer overflow (high 8.6)
- [CVE-2022-36063](https://insights.sbomify.com/CVE-2022-36063/): USBX Host CDC ECM integer underflow with buffer overflow (high 7.6)
- [CVE-2022-29223](https://insights.sbomify.com/CVE-2022-29223/): Buffer overflow on HUB descriptor in Azure RTOS USBX (high 7.5)
- [CVE-2023-48695](https://insights.sbomify.com/CVE-2023-48695/): Azure RTOS USBX Remote Code Execution Vulnerability (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-55096 and fix it if it is affected.

What it is: CVE-2025-55096 is a low-severity vulnerability in Eclipse Foundation NetX Duo, published on 17 Oct 2025. 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-2025-55096 in the wild and no public exploit code.

Affected product: Eclipse Foundation NetX Duo. 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-2025-55096/ (Markdown: https://insights.sbomify.com/CVE-2025-55096/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-55096
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-55096
- OSV: https://osv.dev/vulnerability/CVE-2025-55096

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-55096/
Summaries are generated and may contain mistakes; the official description above is the record.