{"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","cwe":["CWE-200","CWE-501","CWE-822"],"vendor":"Eclipse Foundation","product":"ThreadX","affected":["ThreadX <= 6.5.1.202602"],"published":"2026-09-29","updated":"2026-09-30","sourceUpdated":"2026-09-30T21:17:05.047","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102709","references":[{"url":"https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-ffg5-m7vh-vwrp","label":"emo@eclipse.org"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-30T20:38:55.280355Z"},"cvssSource":"cna","epss":0.00104,"epssPercentile":0.01016,"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## 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":[]}