Fire-Boltt BSW013 smartwatch accepts unauthenticated BLE alerts
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
Fire-Boltt BSW013 smartwatch firmware through V0.0.8 has a missing authentication flaw (CWE-306) in its proprietary BLE command characteristic. An unpaired attacker within Bluetooth range can write commands protected only by a CRC-16/ARC checksum, causing the watch to vibrate and display spoofed alert text for phishing. The references include an exploit link.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Fire-Boltt | BSW013 | up to V0.0.8 | — | No fix listed | CNA |
- BSW013 VendorFire-Boltt Affected up to V0.0.8 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for Fire-Boltt BSW013.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-12 Threatist record created from CVE-2026-109570
- 2026-10-13 Alias added: GHSA-hf79-56cq-w4qp
- 2026-10-13 CISA SSVC decision points changed
- 2026-10-13 Priority changed: LOW → MEDIUM
References
Exploit 1
More Fire-Boltt vulnerabilities
- TI-2024-20346 An issue in Fireboltt Dream Wristphone BSW202_FB_AAC_v2.0_20240110-20240110-1956 allows… CVSS 3.1HIGH 7.5
- TI-2026-71301 Missing authentication in Fire-Boltt BSW013 leaks heart rate over BLE CVSS 4.0LOW 2.3
Sources
- CVE-2026-109570 · CVE Program
- CVE-2026-109570 · NVD
- FIRST EPSS
- GHSA-hf79-56cq-w4qp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences