CVE-2020-13470: Gigadevice GD32F103 and GD32F130 devices allow physical attackers to extract data via the probing of easily ac

Routine

MEDIUM 4.6MITIGATEMITIGATE

CVE-2020-13470 is a medium-severity flaw (CVSS 4.6) affecting gd32f103 firmware, gd32f130 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Gigadevice GD32F103 and GD32F130 devices allow physical attackers to extract data via the probing of easily accessible bonding wires and de-obfuscation of the observed data.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.6 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-668
Published	2020-08-31
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: gigadevice

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-08-31 16:15 UTCPublished CVE record published
2026-06-17 02:53 UTCUpdated Record last modified

gigadevice gd32f103 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

gigadevice gd32f130 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-13470?

gd32f103 firmware: mitigate or apply the listed mitigation; gd32f130 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-13470 being exploited?

CVE-2020-13470 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-13470 affect?

CVE-2020-13470 affects gd32f103 firmware, gd32f130 firmware. Severity is medium (CVSS 4.6). Gigadevice GD32F103 and GD32F130 devices allow physical attackers to extract data via the probing of easily accessible bonding wires and de-obfuscation of the observed data.

How urgent is CVE-2020-13470?

Priority 29/100. Public exploit reference

Related CVEs

CVE-2020-13472 MEDIUM 4.6 MITIGATE The flash memory readout protection in Gigadevice GD32F103 devices allows physical attackers to extract firmwa
CVE-2020-13465 MEDIUM 6.8 MITIGATE The security protection in Gigadevice GD32F103 devices allows physical attackers to redirect the control flow

References

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