Description
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: 2026-09-07
Score: 6.8 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 07 Sep 2026 08:45:00 +0000

Type Values Removed Values Added
Description 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.
Title QSPI flash encryption side-channel leakage
Weaknesses CWE-1342
References
Metrics cvssV4_0

{'score': 6.8, 'vector': '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'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: YesWeHack

Published:

Updated: 2026-09-07T08:07:31.633Z

Reserved: 2026-08-04T09:40:15.178Z

Link: CVE-2026-18796

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-07T09:17:15.570

Modified: 2026-09-07T09:17:15.570

Link: CVE-2026-18796

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-1342

    Information Exposure through Microarchitectural State after Transient Execution