fastrack Reflex 2.0 W307S_REFLEX_v90.89 Activity Tracker allows an Unauthenticated Remote…
Priority LOW 37Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
fastrack Reflex 2.0 W307S_REFLEX_v90.89 Activity Tracker allows an Unauthenticated Remote attacker to send a malicious firmware update via BLE and brick the device.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00949 61st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-35951
- 2026-10-03 Alias added: GHSA-69wp-h9cx-p58w
References
More Fastrack Reflex 2.0 Firmware vulnerabilities
- TI-2021-14408 fastrack Reflex 2.0 W307S_REFLEX_v90.89 Activity Tracker allows physically proximate… CVSS 3.1HIGH 8.1
- TI-2021-14407 fastrack Reflex 2.0 W307S_REFLEX_v90.89 Activity Tracker allows a Remote attacker to… CVSS 3.1HIGH 7.5
- TI-2021-14406 fastrack Reflex 2.0 W307S_REFLEX_v90.89 Activity Tracker allows a Remote attacker to… CVSS 3.1MEDIUM 5.3
Sources
- CVE-2021-35951 · CVE Program
- CVE-2021-35951 · NVD
- FIRST EPSS
- GHSA-69wp-h9cx-p58w · 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