---
id: CVE-2026-94024
title: Module Manager object lookup validates one byte of a module's search name
summary: >-
  The Module Manager's object lookup validated one byte of a memory-protected
  module's search name and then walked as much of it as the module declared, in
  privileged mode, with the kernel's preemption count raised. Both lookup
  dispatchers…
severity: medium
cvss: 6.9
cvssVector: 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-125
  - CWE-1284
vendor: Eclipse Foundation
product: ThreadX
affected:
  - ThreadX >= 6.0.1 <= 6.5.1.202602a
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-20T17:00:57.744851Z'
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T17:01:07.513Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-94024'
references:
  - url: >-
      https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-39rx-hq8c-4px8
tags:
  - cve.org
ingestedAt: '2026-10-20T16:10:53.316Z'
---

## Overview

The Module Manager's object lookup validated one byte of a memory-protected module's search name and then walked as much of it as the module declared, in privileged mode, with the kernel's preemption count raised. Both lookup dispatchers are affected: the recommended `txm_module_object_pointer_get_extended` is handed a length and does not use it to bound the buffer, and the deprecated `txm_module_object_pointer_get` supplies the largest value a `UINT` can hold, so it removes the bound rather than lacking one.



A module can make the walk unbounded without knowing anything about the memory it reaches, and where the walk reaches memory a privileged read cannot take, the resulting fault leaves the kernel unable to preempt for the rest of the system's life.



Vulnerable functions: `_txm_module_manager_txm_module_object_pointer_get_dispatch`, `_txm_module_manager_txm_module_object_pointer_get_extended_dispatch` (both in `common_modules/module_manager/inc/txm_module_manager_dispatch.h`) and `_txm_module_manager_object_name_compare` (`common_modules/module_manager/src/txm_module_manager_util.c`).

## Affected

- `ThreadX >= 6.0.1 <= 6.5.1.202602a`

## Remediation

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