TI-2026-65490 Aliases CVE-2026-102757 GHSA-j3fp-8rcq-xfj5

Out-of-bounds read in Eclipse Foundation ThreadX

LOW 38CWE-125Published 2026-09-29 · Updated 2026-10-02

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

An unprivileged, memory-protected ThreadX module can have the kernel read and write memory at addresses of its choosing, in privileged mode, and can use that to clear the MPU enable bit and remove its own isolation boundary. The Module Manager decided whether a privileged service could dereference an object address a module named by asking only whether that address fell outside the module. The manager's object pool is outside every module, so the test was satisfied by an address shifted into the interior of one of the module's own privileged allocations, which denotes no object at all. The bytes such an address presents as a control block are bytes the module put there through ordinary create and set services, so the control block ID at the front of them could be made to read as any type the module chose, and the `_txe_` layer's ID test then agreed. The reported chain uses that to reach a privileged `memset` across an attacker-chosen range.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00104 1st percentileScored 2026-11-07

Fix Fixed ThreadX (Eclipse Foundation): 6.5.2.202603

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

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	ThreadX	6.0.1 – 6.5.1.202602a	6.5.2.202603	Patch available	CNA

ThreadX VendorEclipse Foundation Affected 6.0.1 – 6.5.1.202602a Fixed in 6.5.2.202603 Patch available CNA

Remediation

Fix · CNA ThreadX (Eclipse Foundation) Fixed in 6.5.2.202603

Timeline

2026-10-02 Threatist record created from CVE-2026-102757
2026-10-03 Alias added: GHSA-j3fp-8rcq-xfj5

References

Other 1

https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-rrjj-jwcw-hvf8

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TI-2026-13216 CWE-863: ABAC authorization bypass via trailing slash route normalization in Eclipse BaSyx Go Components CVSS 3.1CRITICAL 9.8
TI-2026-06514 Path traversal in Eclipse BaSyx CVSS 3.1CRITICAL 10.0
TI-2026-01382 In the Eclipse Theia Website repository, the GitHub Actions workflow… CVSS 3.1CRITICAL 10.0
TI-2026-74697 Authentication bypass in Eclipse Jetty EthereumAuthenticator CVSS 4.0CRITICAL 9.3

See all 466 →

Sources

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