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    2 vulnerabilities found for nRF5340 by Nordic Semiconductor ASA

    CVE-2026-18796 (GCVE-0-2026-18796)

    Vulnerability from nvd – Published: 2026-09-07 08:07 – Updated: 2026-09-10 11:17
    VLAI
    Title
    QSPI flash encryption side-channel leakage
    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.
    Severity
    6.8 (Medium)
    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
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-08 15:01 UTC
    CWE
    • CWE-1342 - Information exposure through microarchitectural state after transient execution
    Assigner
    References
    Impacted products
    Vendor Product Version
    Nordic Semiconductor ASA nRF5340 Affected: All build codes
    		Create a notification for this product.
    Credits
    Reported externally through PSIRT by Daniël Eijkman and Damian Vizár (CSEM)
    Show details on NVD website
    To clipboard 

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    CVE-2026-18796 (GCVE-0-2026-18796)

    Vulnerability from cvelistv5 – Published: 2026-09-07 08:07 – Updated: 2026-09-10 11:17
    VLAI
    Title
    QSPI flash encryption side-channel leakage
    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.
    Severity
    6.8 (Medium)
    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
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-08 15:01 UTC
    CWE
    • CWE-1342 - Information exposure through microarchitectural state after transient execution
    Assigner
    References
    Impacted products
    Vendor Product Version
    Nordic Semiconductor ASA nRF5340 Affected: All build codes
    		Create a notification for this product.
    Credits
    Reported externally through PSIRT by Daniël Eijkman and Damian Vizár (CSEM)
    Show details on NVD website
    To clipboard 

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