QSPI flash encryption side-channel leakage
cve-program · CVE-2026-18796
PublishedAny 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.
Read the publisher's advisoryAffected versions, risk and source history
Exploitation and risk
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cve-program · CVE-2026-18796
PublishedQSPI flash encryption side-channel leakage
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.
- Source published
- 7 Sep 2026 08:07:31 UTC
- Source modified
- 10 Sep 2026 11:17:10 UTC
- Saved here
- 23 Oct 2026 15:48:27 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 4.0 · 6.8 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