{"cve":"CVE-2019-14239","nvd":{"published":"2019-09-24T19:15:11.333","modified":"2026-06-17T02:18:01.210","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":6.6},"cwes":["CWE-287"],"references":["https://www.usenix.org/conference/woot19/presentation/schink","https://www.usenix.org/system/files/woot19-paper_schink.pdf","https://www.usenix.org/conference/woot19/presentation/schink","https://www.usenix.org/system/files/woot19-paper_schink.pdf"],"products":["nxp:kinetis_k8x_firmware","nxp:kinetis_kv1x_firmware","nxp:kinetis_kv3x_firmware"],"source":"nvd","synced_at":"2026-10-19T20:59:10.855360465+00:00"},"epss":{"cve":"CVE-2019-14239","score":0.00401,"percentile":0.34379,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}