CVE-2026-18796
CVE-2026-18796 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1342.
Key facts
- Severity: Medium (CVSS 4.0 base score 6.8)
- EPSS exploit prediction: 0% (1st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-1342
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-18796?
- 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.
- How severe is CVE-2026-18796?
- CVE-2026-18796 has a CVSS 4.0 base score of 6.8, rated medium severity.
- Is CVE-2026-18796 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-18796?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2026-18796 published?
- CVE-2026-18796 was published on 2026-09-07 and last updated on 2026-09-09.
References
Other CWE-1342 vulnerabilities
- CVE-2023-28746 — Medium (CVSS 6.5): Information exposure through microarchitectural state after transient execution from some register files for some…