---
id: CVE-2026-94202
title: Module block-pool create validates two of the four parameter words it reads
summary: >-
  The Module Manager's block-pool create dispatcher proved that two `ALIGN_TYPE`
  words of the extra-parameter array a memory-protected module supplies lay
  inside the module's data, and then used indices 0 through 3 of that array.




  One of…
severity: medium
cvss: 4.8
cvssVector: 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-125
vendor: Eclipse Foundation
product: ThreadX
affected:
  - ThreadX >= 6.0.1 <= 6.5.1.202602a
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-20T17:04:43.658861Z'
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T17:04:52.595Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-94202'
references:
  - url: >-
      https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-5w57-xhwq-v7wq
tags:
  - cve.org
ingestedAt: '2026-10-20T16:10:53.314Z'
---

## Overview

The Module Manager's block-pool create dispatcher proved that two `ALIGN_TYPE` words of the extra-parameter array a memory-protected module supplies lay inside the module's data, and then used indices 0 through 3 of that array.



One of the two unproved words is read by the dispatcher's own buffer check, which takes index 1 as the pool start and index 2 as the length to range-check it over. So the out-of-bounds read is performed by the validation code itself, before the kernel service is reached, and the size the caller's pool start is then validated against is a word the manager has not proved the module owns. The other unproved word is read when the service's argument list is built.



Vulnerable function: `_txm_module_manager_tx_block_pool_create_dispatch`, in `common_modules/module_manager/inc/txm_module_manager_dispatch.h`.

## Affected

- `ThreadX >= 6.0.1 <= 6.5.1.202602a`

## Remediation

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