SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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.

MEDIUM 4.6EPSS 0.33%

Does this matter?

Lower severity and a low EPSS score (0.33%). Track it; it rarely justifies an emergency change on its own.

Description

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

CVSS 3.1
4.6 MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
0.33% probability · 26th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-755
Affected
apexmic/apm32f103 firmware
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 0.33%26 October 202626 October 2026

EPSS 0.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.