How severe is CVE-2020-13471?

CVE-2020-13471 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-13471 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13471?

CVE-2020-13471 affects Apexmic Apm32f103 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-13471?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-13471 published?

CVE-2020-13471 was published on 2020-08-31 and last updated on 2026-06-17.

CVE-2020-13471

CVE-2020-13471 is a medium-severity vulnerability in Apexmic Apm32f103 Firmware with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apexmic Apm32f103 Firmware
Published: 2020-08-31
Last modified: 2026-06-17

Description

Apex Microelectronics APM32F103 devices allow physical attackers to execute arbitrary code via a power glitch and a specific flash patch/breakpoint unit configuration.

Frequently asked questions

What is CVE-2020-13471?: Apex Microelectronics APM32F103 devices allow physical attackers to execute arbitrary code via a power glitch and a specific flash patch/breakpoint unit configuration.
How severe is CVE-2020-13471?: CVE-2020-13471 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-13471 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13471?: CVE-2020-13471 affects Apexmic Apm32f103 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-13471?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-13471 published?: CVE-2020-13471 was published on 2020-08-31 and last updated on 2026-06-17.

References

https://www.usenix.org/system/files/woot20-paper-obermaier.pdf

Affected products (1)

cpe:2.3:o:apexmic:apm32f103_firmware:-:*:*:*:*:*:*:*

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