CVE-2019-17627: The Yale Bluetooth Key application for mobile devices allows unauthorized unlock actions by sniffing Bluetooth

This month

MEDIUM 6.5MITIGATE

CVE-2019-17627 is a medium-severity flaw (CVSS 6.5) affecting yale bluetooth key. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Yale Bluetooth Key application for mobile devices allows unauthorized unlock actions by sniffing Bluetooth Low Energy (BLE) traffic during one authorized unlock action, and then calculating the authentication key via simple computations on the hex digits of a valid authentication request. This affects the Yale ZEN-R lock and unspecified other locks.

Why this priority

Public exploit reference

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	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-287
Published	2019-10-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: yalehome

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

Am I affected?

Timeline

2019-10-16 12:15 UTCPublished CVE record published
2026-06-17 02:24 UTCUpdated Record last modified

yalehome yale bluetooth key MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy yale-bluetooth-key || rpm -q yale-bluetooth-key || yale-bluetooth-key --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2019-17627?

yale bluetooth key: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-17627 being exploited?

CVE-2019-17627 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-2019-17627 affect?

CVE-2019-17627 affects yale bluetooth key. Severity is medium (CVSS 6.5). The Yale Bluetooth Key application for mobile devices allows unauthorized unlock actions by sniffing Bluetooth Low Energy (BLE) traffic during one authorized unlock action, and then calculating the authentication key via simple computations

How urgent is CVE-2019-17627?

Priority 41/100. Public exploit reference

Software pages

Bluetooth vulnerabilities

References

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