---
id: CVE-2025-55080
title: >-
  In Eclipse ThreadX before 6.4.3, when memory protection is enabled, syscall
  parameters verification wasn't enough, allowing an attacker to obtain an
  arbitrary memory read/write.
summary: >-
  In Eclipse ThreadX before 6.4.3, when memory protection is enabled, syscall
  parameters verification wasn't enough, allowing an attacker to obtain an
  arbitrary memory read/write.
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-233
vendor: eclipse
product: threadx
affected:
  - threadx < 6.4.3
patched:
  - threadx 6.4.3
published: '2025-10-15'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T12:10:00.217'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-55080'
references:
  - url: >-
      https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-76hh-wrj5-hr2v
    label: emo@eclipse.org
tags:
  - nvd
epss: 0.00138
epssPercentile: 0.0274
ingestedAt: '2026-10-08T12:39:48.735Z'
---

## Overview

In Eclipse ThreadX before 6.4.3, when memory protection is enabled, syscall parameters verification wasn't enough, allowing an attacker to obtain an arbitrary memory read/write.

## Affected

- `threadx < 6.4.3`

## Remediation

Upgrade past the affected range:

- `threadx 6.4.3`