CVE-2021-35951

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://payatu.com/advisory/fastrack-reflex-unauthenticated-firmware-update	Third Party Advisory
https://www.fastrack.in/shop/watch-smart-wearables-reflex-2	Permissions Required
https://payatu.com/advisory/fastrack-reflex-unauthenticated-firmware-update	Third Party Advisory
https://www.fastrack.in/shop/watch-smart-wearables-reflex-2	Permissions Required

Configurations

Configuration 1 (hide)

AND

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

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

History

21 Nov 2024, 06:12

Type	Values Removed	Values Added
References	~~() https://payatu.com/advisory/fastrack-reflex-unauthenticated-firmware-update - Third Party Advisory~~	() https://payatu.com/advisory/fastrack-reflex-unauthenticated-firmware-update - Third Party Advisory
References	~~() https://www.fastrack.in/shop/watch-smart-wearables-reflex-2 - Permissions Required~~	() https://www.fastrack.in/shop/watch-smart-wearables-reflex-2 - Permissions Required

Information

Published : 2022-12-26 06:15

Updated : 2025-04-14 19:15

NVD link : CVE-2021-35951

Mitre link : CVE-2021-35951

CVE.ORG link : CVE-2021-35951

JSON object : View

Products Affected

fastrack

reflex_2.0_firmware
reflex_2.0

CWE

NVD-CWE-noinfo

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