CVE-2021-35954

—

CVSS 3.1

8.1 high

EPSS

<1%p25

Published

Dec 26, 2022 (Dec 26, 2022)

Modified

Jun 17, 2026

Description

fastrack Reflex 2.0 W307S_REFLEX_v90.89 Activity Tracker allows physically proximate attackers to dump the firmware, flash custom malicious firmware, and brick the device via the Serial Wire Debug (SWD) feature.

Vendors: fastrack
Products: reflex 2.0 firmware
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.3%)

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