CVE-2026-18796

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.

  • Published Sep 7, 2026
  • CVSS 6.8 medium
  • 0.1% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-18796 at the National Vulnerability Database