Eclipse ThreadX modules can delete kernel objects they do not own
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
Eclipse ThreadX from 6.0.1 through 6.5.1.202602a is affected. The Module Manager delete dispatchers check only that an object lies outside the module's own code and data, so they do not verify ownership before deleting a kernel object (CWE-862). A local attacker with low privileges can have the privileged dispatcher delete objects created by others, and the deletion cannot be undone.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
A ThreadX module reaches a kernel object's delete service through the Module Manager's dispatch layer, which asked one question about the pointer: does the object lie outside the module's own code and data. That is the policy for *using* an object, and using an object a module does not own is supported and intended — `txm_module_object_pointer_get_extended` searches the system's created objects by name and hands back objects the application created and objects other modules created, so that a module can send to a shared queue, take a shared semaphore or get a shared mutex. Destroying one of those is not sharing it. A module could name any object it had a pointer to and have the privileged dispatcher delete it.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX | 6.0.1 – 6.5.1.202602a | 6.5.2.202603 | Patch available | CNA |
- Eclipse ThreadX VendorEclipse Foundation Affected 6.0.1 – 6.5.1.202602a Fixed in 6.5.2.202603 Patch available CNA
Remediation
Eclipse ThreadX 6.5.2.202603 fixes this flaw. Upgrade affected installations to that version.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA Eclipse ThreadX (Eclipse Foundation) Fixed in 6.5.2.202603
Timeline
- 2026-10-20 Threatist record created from CVE-2026-94023
- 2026-10-20 CISA SSVC decision points changed
- 2026-10-20 Priority changed: MEDIUM → LOW
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Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences