---
id: CVE-2025-55079
title: >-
  In Eclipse ThreadX before version 6.4.3, the thread module has a setting of
  maximum priority
summary: >-
  In Eclipse ThreadX before version 6.4.3, the thread module has a setting of
  maximum priority. In some cases the check of that maximum priority wasn't
  performed, allowing, as a result, to obtain a thread with higher priority than
  expected…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-770
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-2025-55079'
references:
  - url: >-
      https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-w8rw-fqgj-9r49
    label: emo@eclipse.org
tags:
  - nvd
epss: 0.00172
epssPercentile: 0.06031
ingestedAt: '2026-10-08T12:39:48.732Z'
---

## Overview

In Eclipse ThreadX before version 6.4.3, the thread module has a setting of maximum priority. In some cases the check of that maximum priority wasn't performed, allowing, as a result, to obtain a thread with higher priority than expected and causing a possible denial of service.

## Affected

- `threadx < 6.4.3`

## Remediation

Upgrade past the affected range:

- `threadx 6.4.3`