---
id: CVE-2025-55085
title: >-
  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
summary: >-
  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.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-125
  - CWE-1286
vendor: eclipse
product: threadx_netx_duo
affected:
  - threadx_netx_duo < 6.4.4.202503
patched:
  - threadx_netx_duo 6.4.4.202503
published: '2025-10-17'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T10:10:00.193'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-55085'
references:
  - url: >-
      https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-9c77-rgp9-c2g2
    label: emo@eclipse.org
tags:
  - nvd
epss: 0.00607
epssPercentile: 0.47436
ingestedAt: '2026-10-09T12:53:29.116Z'
---

## Overview

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.

## Affected

- `threadx_netx_duo < 6.4.4.202503`

## Remediation

Upgrade past the affected range:

- `threadx_netx_duo 6.4.4.202503`