Missing Authentication Vulnerability in Fire-Boltt BSW013 Smartwatch Firmware
CVE-2026-109571

2.3LOW

Key Information:

Vendor

Fire-boltt

Status
Bsw013
Vendor
CVE Published:
12 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-109571?

The Fire-Boltt BSW013 smartwatch firmware version V0.0.8 has a missing authentication vulnerability that allows unauthorized Bluetooth devices to subscribe to the Heart Rate Measurement characteristic (0x2A37). This flaw enables attackers within Bluetooth range to intercept the user's live heart rate readings without needing to pair or authenticate with the smartwatch. This could lead to sensitive health data exposure, emphasizing the need for security measures in wearable devices.

Affected Version(s)

BSW013 0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-109571 - Proof of Concept

References

https://github.com/Pratham-16/fireboltt-Bsw013-BLE-vuln
technical-descriptionexploit
https://www.vulncheck.com/advisories/fire-boltt-bsw013-fi...
third-party-advisory

CVSS V4

Score:
2.3
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pratham A Gowda
.