How severe is CVE-2019-14239?

CVE-2019-14239 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-14239 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-14239?

CVE-2019-14239 primarily affects Nxp Kinetis Kv1x Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-14239?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-14239 published?

CVE-2019-14239 was published on 2019-09-24 and last updated on 2026-06-17.

CVE-2019-14239

CVE-2019-14239 is a medium-severity vulnerability in Nxp Kinetis Kv1x Firmware with a CVSS 3.x base score of 6.6. 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-287.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
CVSS v2: 4.6
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Nxp Kinetis Kv1x Firmware
Published: 2019-09-24
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2019-14239?: CVE-2019-14239 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-14239 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-14239?: CVE-2019-14239 primarily affects Nxp Kinetis Kv1x Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-14239?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-14239 published?: CVE-2019-14239 was published on 2019-09-24 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:nxp:kinetis_kv1x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nxp:kinetis_kv3x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nxp:kinetis_k8x_firmware:-:*:*:*:*:*:*:*

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