What is the CVSS score of CVE-2019-14239?

CVE-2019-14239 has a CVSS 3.1 base score of 6.6 (Medium). CVSS vector: CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.4%.

Is there a public PoC exploit available for CVE-2019-14239?

Yes, a public proof-of-concept exploit is available for CVE-2019-14239. Prioritise patching immediately. EPSS: 0.4%.

Kinetis Kv1X Firmware CVE-2019-14239

MEDIUM

Improper Authentication (CWE-287)

2019-09-24 cve@mitre.org

Authentication Bypass Kinetis Kv1X Firmware Kinetis Kv3X Firmware Kinetis K8X Firmware

6.6

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.6 MEDIUM

AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Sep 24, 2019 - 19:15 nvd

MEDIUM 6.6

DescriptionNVD

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.

AnalysisAI

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. Rated medium severity (CVSS 6.6), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. 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. Affected products include: Nxp Kinetis Kv1X Firmware, Nxp Kinetis Kv3X Firmware, Nxp Kinetis K8X Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.