---
id: CVE-2026-11576
title: "The security fix for CVE-2025-0728 in eclipse-threadx NetX Duo refactors error handling in the HTTP server PUT process to use a shared cleanup label, but this unified cleanup path unconditionally calls\_fx_file_close()\_even when the file …"
summary: "The security fix for CVE-2025-0728 in eclipse-threadx NetX Duo refactors error handling in the HTTP server PUT process to use a shared cleanup label, but this unified cleanup path unconditionally calls\_fx_file_close()\_even when the file …"
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-415
  - CWE-459
  - CWE-908
  - CWE-459
vendor: eclipse
product: threadx_netx_duo
affected:
  - 'threadx_netx_duo >= 6.4.2, <= 6.5.0.202601'
published: '2026-06-19'
updated: '2026-07-02'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-11576'
references:
  - url: 'https://gitlab.eclipse.org/security/cve-assignment/-/work_items/123'
    label: emo@eclipse.org
tags:
  - nvd
epss: 0.0046
epssPercentile: 0.37248
ingestedAt: '2026-07-03T13:02:27.807Z'
---

## Overview

The security fix for CVE-2025-0728 in eclipse-threadx NetX Duo refactors error handling in the HTTP server PUT process to use a shared cleanup label, but this unified cleanup path unconditionally calls fx_file_close() even when the file was never successfully opened. Multiple error branches jump to the shared cleanup label before any file open operation has occurred, causing fx_file_close() to operate on an uninitialized file handle, leading to undefined behavior, double-close issues, or memory corruption.

## Affected

- `threadx_netx_duo >= 6.4.2, <= 6.5.0.202601`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.