CVE-2026-18796

Summary

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 Software

VendorProductVersion RangeStatus
Nordic Semiconductor ASAnRF5340All build codesaffected

Weaknesses

  • CWE-1342: CWE-1342 Information exposure through microarchitectural state after transient execution

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References