---
id: CVE-2026-118052
title: >-
  Module Manager loaders leave the manager mutex held when a module preamble's
  sizes overflow, blocking every later module operation
summary: >-
  In Eclipse ThreadX versions 6.0.1 through 6.5.2.202603, the Module Manager
  loaders return an overflow error without releasing the Module Manager mutex
  when a module preamble declares a data or stack size that overflows the
  allocation ari…
severity: medium
cvss: 6.8
cvssVector: 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-667
  - CWE-833
vendor: Eclipse Foundation
product: Eclipse ThreadX
affected:
  - eclipse_threadx >= 6.0.1 <= 6.5.2.202603
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-02T16:19:35.690129Z'
published: '2026-11-02'
updated: '2026-11-02'
sourceUpdated: '2026-11-02T16:19:56.290Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-118052'
references:
  - url: >-
      https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-67ww-q8x2-g487
  - url: 'https://gitlab.eclipse.org/security/cve-assignment/-/work_items/511'
tags:
  - cve.org
epss: 0.00112
epssPercentile: 0.0137
ingestedAt: '2026-11-05T19:30:42.708Z'
---

## Overview

In Eclipse ThreadX versions 6.0.1 through 6.5.2.202603, the Module Manager loaders return an overflow error without releasing the Module Manager mutex when a module preamble declares a data or stack size that overflows the allocation arithmetic. Loading such an image blocks every later module load, start, stop and unload from other threads until the system is reset.

## Affected

- `eclipse_threadx >= 6.0.1 <= 6.5.2.202603`

## Remediation

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