What is CVE-2019-14239?

CVE-2019-14239 is a medium-severity vulnerability in Nxp Kinetis K8x, classified under Improper Authentication. CVSS score: 6.6/10. Published 2019-09-24.

How severe is CVE-2019-14239?

Medium severity. CVSS v3 base score is 6.6 out of 10.

Auth bypass in Nxp Kinetis K8x

CVE-2019-14239

On NXP Kinetis KV1x, Kinetis KV3x, and Kinetis K8x devices, Flash Access Controls (FAC) (a software IP protection method for execute-only access) can be defeated by leveraging a load instruction inside the execute-only region to expose the protected code into a CPU register.

Vulnerability class: Broken Authentication

EPSS: 0.004 (32.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Mitigation)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-14239?: CVE-2019-14239 is a medium-severity vulnerability in Nxp Kinetis K8x, classified under Improper Authentication. CVSS score: 6.6/10. Published 2019-09-24.
How severe is CVE-2019-14239?: Medium severity. CVSS v3 base score is 6.6 out of 10.