CVE-2019-14238
MEDIUMCVSS 6.6/10EPSS 0.40%
Last modified
CVE-2019-14238 is a medium-severity vulnerability rated 6.6/10 on the CVSS scale. 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.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| St | Stm32l0 Firmware | All versions |
| St | Stm32l1 Firmware | All versions |
| St | Stm32f4 Firmware | All versions |
| St | Stm32l4 Firmware | All versions |
| St | Stm32f7 Firmware | All versions |
| St | Stm32h7 Firmware | All versions |
References
- 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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-14238?
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.
How severe is CVE-2019-14238?
CVE-2019-14238 has a CVSS score of 6.6/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.
How do I fix CVE-2019-14238?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-14238?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST