Medium severity6.6NVD Advisory· Published Sep 24, 2019· Updated Jun 17, 2026
CVE-2019-14239
CVE-2019-14239
Description
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.
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Affected products
6- cpe:2.3:o:nxp:kinetis_k8x_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:nxp:kinetis_kv1x_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:nxp:kinetis_kv3x_firmware:-:*:*:*:*:*:*:*
- NXP/Kinetis KV1x, Kinetis KV3x, and Kinetis K8xdescription
Patches
Vulnerability mechanics
References
2- www.usenix.org/conference/woot19/presentation/schinknvdExploitThird Party Advisory
- www.usenix.org/system/files/woot19-paper_schink.pdfnvdExploitMitigationThird Party Advisory
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