CVE-2022-40480: Nordic Semiconductor, Microchip Technology NRF5340-DK DT100112 was discovered to contain an issue which allows

Routine

MEDIUM 6.5MITIGATEMITIGATE

CVE-2022-40480 is a medium-severity flaw (CVSS 6.5) affecting dt100112 firmware, nrf5340-dk firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Nordic Semiconductor, Microchip Technology NRF5340-DK DT100112 was discovered to contain an issue which allows attackers to cause a Denial of Service (DoS) via a crafted ConReq packet.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-400
Published	2023-02-08
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: microchip · nordicsemi

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

Am I affected?

Timeline

2023-02-08 00:15 UTCPublished CVE record published
2026-06-17 05:01 UTCUpdated Record last modified

microchip dt100112 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.

nordicsemi nrf5340-dk 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-2022-40480?

dt100112 firmware: mitigate or apply the listed mitigation; nrf5340-dk firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-40480 being exploited?

CVE-2022-40480 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-2022-40480 affect?

CVE-2022-40480 affects dt100112 firmware, nrf5340-dk firmware. Severity is medium (CVSS 6.5). Nordic Semiconductor, Microchip Technology NRF5340-DK DT100112 was discovered to contain an issue which allows attackers to cause a Denial of Service (DoS) via a crafted ConReq packet.

How urgent is CVE-2022-40480?

Priority 29/100. No elevated risk signals yet.

References

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