CVE-2026-109571

LOW

4.3CVSS v3

—CVSS v2

0.18% EPSS (exploit probability)

CWE-306CWE

Description

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.

CVSS v3 vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected routers (0)

No routers currently mapped to this CVE in our database.

External references

NIST NVD
MITRE CVE