CVE-2026-95111Medium· 4.8▾ SunlitA memory-protected ThreadX module's queue request reaches the Module Manager's dispatch layer, which decides how much of the module's buffer the privileged queue copy may touch and hands that extent to the module port's range check. A qu…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 26.4 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
A memory-protected ThreadX module's queue request reaches the Module Manager's dispatch layer, which decides how much of the module's buffer the privileged queue copy may touch and hands that extent to the module port's range check. A queue's tx_queue_message_size is a count of ULONGs and the copy moves that many words, so the extent is message_size * sizeof(ULONG) bytes.
The front-send dispatcher passed the word count itself. tx_queue_send and tx_queue_receive, either side of it in the same header, have always multiplied.
A source buffer ending message_size bytes into memory the module may read was therefore accepted, and _txe_queue_front_send then read message_size * sizeof(ULONG) bytes from it in privileged mode — 3 * message_size bytes past the end of what the module is allowed to read. The words are written into the queue's message area, so a module that can receive from that queue reads them back.
ThreadX >= 6.0.1 <= 6.5.1.202602aRefer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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