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CVE-2020-8004

HighPublished

STMicroelectronics STM32F1 devices have Incorrect Access Control.

Published: Apr 6, 2020
Updated: Aug 4, 2024
Assigning CNA: mitre
Evidence observed: Aug 5, 2026

Primary CVSS

7.5/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

3.0%

Low · next 30 days

Percentile: 86.9%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

STMicroelectronics STM32F1 devices have Incorrect Access Control.

Sources

CVE-2020-8004Exploit
Exploit tool for CVE-2020-8004 targeting STM32F1 microcontrollers, enabling firmware extraction via OpenOCD and Python scripts to bypass readout protection.

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