TI-2026-76897 Aliases CVE-2026-94202

Out-of-bounds read in Eclipse ThreadX Module Manager block-pool create

LOW 21CWE-125Published 2026-10-20 · Updated 2026-10-20

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: Low · None · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Eclipse ThreadX from 6.0.1 through 6.5.1.202602a is affected. The Module Manager's block-pool create dispatcher reads two parameter words of a memory-protected module's extra-parameter array without first proving that the module owns them. The dispatcher's own buffer check reads one of these unproved words, so an out-of-bounds read happens during validation (CWE-125). A local user with low privileges can trigger it, and the impact is limited to partial confidentiality and availability loss.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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`.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00154 4th percentileScored 2026-11-07

Fix Fixed Eclipse ThreadX (Eclipse Foundation): 6.5.2.202603

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

Update Eclipse ThreadX to version 6.5.2.202603 or later, which fixes this flaw. The sources list no fixed version for the Module Manager component separately.

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-2026-94202
2026-10-20 CISA SSVC decision points changed

References

Other 1

https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-5w57-xhwq-v7wq

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Sources

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