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5.3

Fire-Boltt BSW013 smartwatch can receive fake alerts

CVE-2026-109570 · published 23 days ago
Summary

The Fire-Boltt BSW013 smartwatch firmware up to version 0.8 lets anyone nearby send false notifications to the watch without pairing. An attacker within Bluetooth range can make the watch vibrate and show misleading messages, which could be used for phishing. Update the device firmware or disable Bluetooth when not needed to reduce the risk.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
fire-boltt bsw013 <= V0.0.8
Original advisory text
Fire-Boltt BSW013 through V0.0.8 Unauthenticated BLE Notification Injection
Fire-Boltt BSW013 smartwatch firmware through V0.0.8 contains a missing authentication vulnerability that allows unpaired attackers to inject notifications by writing to the proprietary BLE command characteristic. Attackers within Bluetooth range can craft commands protected only by a CRC-16/ARC checksum to vibrate the watch and display spoofed alert text for phishing.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
5.3 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-306Missing Authentication for Critical Function
Timeline
Published12 Oct 2026
Updated4 Nov 2026
First seen12 Oct 2026
Sources
CVE-2026-109570 · NVD
CVE-2026-109570 · MITRE
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