---
id: CVE-2026-109570
title: >-
  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
summary: >-
  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 Blueto…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-306
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T21:17:13.810'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109570'
references:
  - url: 'https://github.com/Pratham-16/fireboltt-Bsw013-BLE-vuln'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/fire-boltt-bsw013-through-v0-0.8-unauthenticated-ble-notification-injection
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-12T22:05:40.361Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.