CVE-2020-13702

The Rolling Proximity Identifier used in the Apple/Google Exposure Notification API beta through 2020-05-29 enables attackers to circumvent Bluetooth Smart Privacy because there is a secondary temporary UID. An attacker with access to Beacon or IoT networks can seamlessly track individual device movement via a Bluetooth LE discovery mechanism.

Date published : 2020-06-11

https://blog.google/documents/70/Exposure_Notification_-_Bluetooth_Specification_v1.2.2.pdf

https://github.com/google/exposure-notifications-internals/commit/8f751a666697