Description
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 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.
Published: 2026-09-29
Score: 8.4 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 30 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 29 Sep 2026 23:00:00 +0000

Type Values Removed Values Added
Title Improper Validation of Non‑Secure Pointers in ThreadX Leads to Secure Memory Disclosure

Tue, 29 Sep 2026 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Eclipse
Eclipse threadx
Vendors & Products Eclipse
Eclipse threadx

Tue, 29 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
Description 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 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.
Weaknesses CWE-200
CWE-501
CWE-822
References
Metrics cvssV4_0

{'score': 8.4, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: eclipse

Published:

Updated: 2026-09-30T20:39:09.361Z

Reserved: 2026-09-29T16:15:06.474Z

Link: CVE-2026-102709

cve-icon Vulnrichment

Updated: 2026-09-30T20:39:02.966Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-29T18:17:09.863

Modified: 2026-09-30T21:17:05.047

Link: CVE-2026-102709

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-29T22:45:18Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor

  • CWE-501

    Trust Boundary Violation

  • CWE-822

    Untrusted Pointer Dereference