Eclipse ThreadX Module Loader out-of-bounds

Summaryinfo

A vulnerability was found in Eclipse ThreadX. It has been classified as very critical. Impacted is the function _txm_module_manager_memory_load/_txm_module_manager_in_place_load of the component Module Loader. The manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2026-102711. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Eclipse ThreadX (unknown version) and classified as very critical. This issue affects the function _txm_module_manager_memory_load/_txm_module_manager_in_place_load of the component Module Loader. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Two issues in the ThreadX loadable-module loader, reached when a device loads an attacker-controlled module object via `_txm_module_manager_memory_load` / `_txm_module_manager_in_place_load` — APIs that take ONLY a base pointer, no image length, so every size/offset field in `TXM_MODULE_PREAMBLE` is fully attacker-trusted: (1) a heap OOB **read** (`code_size` trusted as the source-image length in the code-copy loop), and (2) a control-flow-integrity / defense-in-depth gap (module entry/start/callback/stop pointers computed as `code_start + preamble_offset` with only a `!= 0` check, and the preamble `checksum` never verified). No controlled OOB write was found (honest — the copy destination is overflow-guarded).

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-102711 since 09/29/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/29/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Eclipse

Name

• ThreadX

License

• open-source

CPE 2.3info

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CPE 2.2info

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