CVE-2019-17519: The Bluetooth Low Energy implementation on NXP SDK through 2.2.1 for KW41Z devices does not properly restrict

Q: How do I fix CVE-2019-17519?

mcuxpresso software development kit: upgrade to newer than 2.2.1. Exact commands for each OS are on this page.

Q: Is CVE-2019-17519 being exploited?

CVE-2019-17519 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-17519 affect?

CVE-2019-17519 affects mcuxpresso software development kit. Severity is high (CVSS 8.8). The Bluetooth Low Energy implementation on NXP SDK through 2.2.1 for KW41Z devices does not properly restrict the Link Layer payload length, allowing attackers in radio range to cause a buffer overflow via a crafted packet.

Q: How urgent is CVE-2019-17519?

Priority 53/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2019-17519 is a high-severity flaw (CVSS 8.8) affecting mcuxpresso software development kit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Bluetooth Low Energy implementation on NXP SDK through 2.2.1 for KW41Z devices does not properly restrict the Link Layer payload length, allowing attackers in radio range to cause a buffer overflow via a crafted packet.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-120
Published	2020-02-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: nxp

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

Am I affected?

Timeline

2020-02-12 19:15 UTCPublished CVE record published
2026-06-17 02:24 UTCUpdated Record last modified

nxp mcuxpresso software development kit UPGRADE

Affected: <= 2.2.1

Fixed in: newer than 2.2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy mcuxpresso-software-development-kit || rpm -q mcuxpresso-software-development-kit || mcuxpresso-software-development-kit --version

2. UPGRADE to newer than 2.2.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mcuxpresso-software-development-kit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mcuxpresso-software-development-kit

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2019-17519?

mcuxpresso software development kit: upgrade to newer than 2.2.1. Exact commands for each OS are on this page.

Is CVE-2019-17519 being exploited?

CVE-2019-17519 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-2019-17519 affect?

CVE-2019-17519 affects mcuxpresso software development kit. Severity is high (CVSS 8.8). The Bluetooth Low Energy implementation on NXP SDK through 2.2.1 for KW41Z devices does not properly restrict the Link Layer payload length, allowing attackers in radio range to cause a buffer overflow via a crafted packet.

How urgent is CVE-2019-17519?

Priority 53/100. High severity; Public exploit reference

Software pages

Bluetooth vulnerabilities

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References

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