{"id":"CVE-2026-102709","title":"Improper validation of non-secure (NS) pointers in multiple TrustZone-M non-secure callable (NSC) entry functions allows an attacker executing in the non-secure world to supply pointers to secure memory","summary":"Improper validation of non-secure (NS) pointers in multiple TrustZone-M non-secure callable (NSC) entry functions allows an attacker executing in the non-secure world to supply pointers to secure memory. The secure firmware subsequently …","severity":"high","cvss":8.4,"cvssVector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","cvssSource":"cna","cwe":["CWE-200","CWE-501","CWE-822"],"vendor":"Eclipse Foundation","product":"ThreadX","affected":["ThreadX <= 6.5.1.202602"],"published":"2026-09-29","updated":"2026-09-29","sourceUpdated":"2026-09-29T17:36:17.135Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-102709","references":[{"url":"https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-ffg5-m7vh-vwrp"}],"tags":["cve.org"],"ingestedAt":"2026-09-29T17:41:02.215Z","slug":"CVE-2026-102709","body":"## Overview\n\nImproper validation of non-secure (NS) pointers in multiple TrustZone-M non-secure callable (NSC) entry functions allows an attacker executing in the non-secure world to supply pointers to secure memory. The secure firmware subsequently dereferences these attacker-controlled pointers without verifying that they reference non-secure memory, resulting in unintended disclosure of secure memory contents. This violates the isolation guarantees provided by Arm TrustZone-M and can be leveraged as a memory disclosure or corruption primitive that may enable recovery of sensitive cryptographic material.\n\n## Affected\n\n- `ThreadX <= 6.5.1.202602`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":46.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}