# CVE-2025-55085: Web http client: Unchecked Server-Side Malicious Packet Issue

> A missing bounds check in the NetX Duo HTTP client allows a malicious server to trigger undefined behavior, potentially leading to code execution or denial of service.

- **Severity:** High 8.8 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Oct 2025
- **Updated:** 20 Oct 2025
- **Also known as:** GHSA-9c77-rgp9-c2g2

## What is CVE-2025-55085?

CVE-2025-55085 is a high-severity memory corruption vulnerability in Eclipse Foundation NetX Duo, published on 17 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In NextX Duo before 6.4.4, in the HTTP client module, the network support code for Eclipse Foundation ThreadX, the parsing of HTTP header fields was missing bounds verification. A crafted server response could cause undefined behavior.

Weakness: CWE-1286 (Improper Validation of Syntactic Correctness of Input), CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2025-55085?

It affects 1 product.


Products: Eclipse Threadx Netx Duo.

## How do I fix CVE-2025-55085?

No fix has been published for CVE-2025-55085 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-55085 being exploited?

There is no known exploitation of CVE-2025-55085 in the wild and no public exploit code.

## Other vulnerabilities in Eclipse Foundation NetX Duo

- [CVE-2025-55102](https://insights.sbomify.com/CVE-2025-55102/): Denial of service in Eclipse ThreadX - NetX Duo (high 8.7)
- [CVE-2026-11576](https://insights.sbomify.com/CVE-2026-11576/): Memory corruption in Eclipse ThreadX - NetX Duo (high 7.5)
- [CVE-2025-2260](https://insights.sbomify.com/CVE-2025-2260/): Eclipse ThreadX NetX Duo HTTP component server denial of service (high 7.1)
- [CVE-2025-0726](https://insights.sbomify.com/CVE-2025-0726/): Eclipse ThreadX NetX Duo HTTP server denial of service (high 7.1)
- [CVE-2024-2452](https://insights.sbomify.com/CVE-2024-2452/): Integer wraparound, under-allocation, and heap buffer overflow in Eclipse ThreadX NetX Duo __portable_aligned_alloc() (high 7.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-55085 and fix it if it is affected.

What it is: CVE-2025-55085 is a high-severity memory corruption vulnerability in Eclipse Foundation NetX Duo, published on 17 Oct 2025. 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-2025-55085 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-2025-55085/ (Markdown: https://insights.sbomify.com/CVE-2025-55085/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-55085
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-55085
- OSV: https://osv.dev/vulnerability/CVE-2025-55085

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-55085/
Summaries are generated and may contain mistakes; the official description above is the record.