CVE-2026-18796mediumCWE-1342

CVE-2026-18796: medium-severity vulnerability in Nordic Semiconductor ASA nRF5340

QSPI flash encryption side-channel leakage

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.8epss 0.1%
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.
CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:N/SA:N
Affected products
Nordic Semiconductor ASA · nRF5340