HOMEVULNERABILITIESCVE-2019-14239
MEDIUM

CVE-2019-14239

CWE-287Published: September 24, 2019· Updated: Jun 17, 2026

6.6
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2019-14239 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.6.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorPhysical
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

nxp6 product(s)
kinetis kv1x firmwarekinetis kv1xkinetis kv3x firmwarekinetis kv3xkinetis k8x firmwarekinetis k8x
Source: NVD CPE · 6 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.usenix.org/conference/woot19/presentation/schink
ADVISORYhttps://www.usenix.org/system/files/woot19-paper_schink.pdf
ADVISORYhttps://www.usenix.org/conference/woot19/presentation/schink
ADVISORYhttps://www.usenix.org/system/files/woot19-paper_schink.pdf

All References (4)

→
https://www.usenix.org/conference/woot19/presentation/schinkExploit · Third Party Advisory
→
https://www.usenix.org/system/files/woot19-paper_schink.pdfExploit · Mitigation · Third Party Advisory
→
https://www.usenix.org/conference/woot19/presentation/schinkExploit · Third Party Advisory
→
https://www.usenix.org/system/files/woot19-paper_schink.pdfExploit · Mitigation · Third Party Advisory

Quick Facts

CVE IDCVE-2019-14239
CVSS Score6.6 / 10
SeverityMEDIUM
WeaknessCWE-287
CISA KEVNo
Affected1 vendor(s)
PublishedSep 24, 2019

Related CVEs (CWE-287)

CVE-2026-57216
10.0
CVE-2026-23600
10.0
CVE-2018-6667
10.0
CVE-2019-16649
10.0
CVE-2010-4279
10.0
CVE-2026-30836
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-14239 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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