CVE-2026-109571

MEDIUM 4.3

Fire-Boltt BSW013 firmware through V0.0.8 Unauthenticated Heart Rate Disclosure via BLE

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

Fire-Boltt BSW013 smartwatch firmware through V0.0.8 contains a missing authentication vulnerability that allows unpaired BLE devices to subscribe to the Heart Rate Measurement characteristic (0x2A37). Attackers within Bluetooth range can receive the wearer's live heart rate readings without pairing, bonding, or any confirmation on the watch.

CWE	CWE-306
Vendor	fire-boltt
Product	bsw013
Published	Oct 12, 2026

Stay Ahead of the Next One

Get instant alerts for fire-boltt bsw013

Be the first to know when new medium vulnerabilities affecting fire-boltt bsw013 are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

Fire-Boltt / BSW013

0 ≤ V0.0.8

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/Pratham-16/fireboltt-Bsw013-BLE-vuln vulncheck.com: https://www.vulncheck.com/advisories/fire-boltt-bsw013-firmware-through-v0-0.8-unauthenticated-heart-rate-disclosure-via-ble

Credits

Pratham A Gowda