CVE-2026-18796: Nordic Semiconductor ASA NRF5340

Medium severity, CVSS 6.8. EPSS: 0.1% chance of exploitation in the next 30 days.

Any application that uses external QSPI flash for encrypted XIP on nRF5340 and relies on that encryption for confidentiality and/or integrity of the externally stored code. No specific nRF Connect SDK version is the root cause; the weakness is in the on-the-fly decryption scheme.

Affected products

Published 2026-09-07. Last modified 2026-09-09.