CVE-2021-35951 - Vulnerability Details - OpenCVE

Description

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.

Published: 2022-12-26

Score: 7.5 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:fastrack:reflex_2.0_firmware:90.89:*:*:*:*:*:*:*

cpe:2.3:h:fastrack:reflex_2.0:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-22586	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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00636.

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://payatu.com/advisory/fastrack-reflex-unauthenticated-firmware-update
https://www.fastrack.in/shop/watch-smart-wearables-reflex-2

History

Mon, 14 Apr 2025 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Subscriptions

Fastrack Reflex 2.0 Reflex 2.0 Firmware

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2022-12-26T00:00:00.000Z

Updated: 2025-04-14T18:30:26.765Z

Reserved: 2021-06-29T00:00:00.000Z

Link: CVE-2021-35951

Vulnrichment

Updated: 2024-08-04T00:47:42.582Z

NVD

Status : Modified

Published: 2022-12-26T06:15:09.770

Modified: 2025-04-14T19:15:29.943

Link: CVE-2021-35951

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

NVD-CWE-noinfo

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