CVE-2020-13463

Name: CVE-2020-13463
Creator: NVD / NIST
Published: 2020-08-31T16:15:14.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.6/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2020-13463 is a medium-severity vulnerability rated 4.6/10 on the CVSS scale. The flash memory readout protection in Apex Microelectronics APM32F103 devices allows physical attackers to extract firmware via the debug interface and exception handling.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

The flash memory readout protection in Apex Microelectronics APM32F103 devices allows physical attackers to extract firmware via the debug interface and exception handling.

Metrics

CVSS 3.1

4.6/10

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

EPSS Probability

0.33%

24.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-755

Affected Software

Vendor	Product	Versions
Apexmic	Apm32f103 Firmware	All versions

References

https://www.usenix.org/system/files/woot20-paper-obermaier.pdfThird Party Advisory
https://www.usenix.org/system/files/woot20-paper-obermaier.pdfThird Party Advisory

Timeline

Published: Aug 31, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-13463?

The flash memory readout protection in Apex Microelectronics APM32F103 devices allows physical attackers to extract firmware via the debug interface and exception handling.

How severe is CVE-2020-13463?

CVE-2020-13463 has a CVSS score of 4.6/10 (MEDIUM severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2020-13463?

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.

Are you affected by CVE-2020-13463?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST