HOMEVULNERABILITIESCVE-2019-14238
MEDIUM

CVE-2019-14238

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

6.6
CVSS v3.1

Official Description

On STMicroelectronics STM32F7 devices, Proprietary Code Read Out Protection (PCROP) (a software IP protection method) can be defeated with a debug probe via the Instruction Tightly Coupled Memory (ITCM) bus.

NVD Source

Technical Analysis

CVE-2019-14238 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

st12 product(s)
stm32l0 firmwarestm32l0stm32l1 firmwarestm32l1stm32f4 firmwarestm32f4stm32l4 firmwarestm32l4stm32f7 firmwarestm32f7stm32h7 firmwarestm32h7
Source: NVD CPE · 12 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-2019-14238
CVSS Score6.6 / 10
SeverityMEDIUM
WeaknessCWE-287
CISA KEVNo
Affected1 vendor(s)
PublishedSep 24, 2019

Related CVEs (CWE-287)

CVE-2006-5268
10.0
CVE-2008-5355
10.0
CVE-2008-3411
10.0
CVE-2008-3703
10.0
CVE-2008-3466
10.0
CVE-2008-4223
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-14238 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.COM. CVE data is provided under the NVD usage policy.
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