Vulnerability Details CVE-2014-10374
On Fitbit activity-tracker devices, certain addresses never change. According to the popets-2019-0036.pdf document, this leads to "permanent trackability" and "considerable privacy concerns" without a user-accessible anonymization feature. The devices, such as Charge 2, transmit Bluetooth Low Energy (BLE) advertising packets with a TxAdd flag indicating random addresses, but the addresses remain constant. If devices come within BLE range at one or more locations where an adversary has set up passive sniffing, the adversary can determine whether the same device has entered one of these locations.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 40.7%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 3.3
References
Products affected by CVE-2014-10374
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cpe:2.3:h:fitbit:charge_2:-
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cpe:2.3:o:fitbit:charge_2_firmware:-