Description
A ThreadX module allocates the control blocks of its kernel objects from the Module Manager's object pool, and can ask for that memory back by address with `txm_module_object_deallocate`. The manager released it whatever was in it, including a control block the kernel was still using. Deallocation is not deletion: the object stays on the created list for its type, a thread stays wherever it was on the ready or suspension lists and stays schedulable, and an active timer stays on the timer list. The byte pool is meanwhile free to hand those same bytes to the next allocation.
Published: 2026-10-20
Score: 8.5 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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History

Tue, 20 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 20 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Description A ThreadX module allocates the control blocks of its kernel objects from the Module Manager's object pool, and can ask for that memory back by address with `txm_module_object_deallocate`. The manager released it whatever was in it, including a control block the kernel was still using. Deallocation is not deletion: the object stays on the created list for its type, a thread stays wherever it was on the ready or suspension lists and stays schedulable, and an active timer stays on the timer list. The byte pool is meanwhile free to hand those same bytes to the next allocation.
Title Module object deallocation can free a live ThreadX kernel object
Weaknesses CWE-416
CWE-664
References
Metrics cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: eclipse

Published:

Updated: 2026-10-20T17:04:24.537Z

Reserved: 2026-09-23T13:42:24.290Z

Link: CVE-2026-94192

cve-icon Vulnrichment

Updated: 2026-10-20T17:04:20.477Z

cve-icon NVD

Status : Received

Published: 2026-10-20T16:17:18.030

Modified: 2026-10-20T18:17:23.700

Link: CVE-2026-94192

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-20T18:15:14Z

Weaknesses
  • CWE-416

    Use After Free

  • CWE-664

    Improper Control of a Resource Through its Lifetime