CVE-2016-6539
The MAC address can be obtained by being in close proximity to the Bluetooth device, effectively exposing the device ID.
Does this matter?
Lower severity and a low EPSS score (1.29%). Track it; it rarely justifies an emergency change on its own.
Description
The Trackr device ID is constructed of a manufacturer identifier of four zeroes followed by the BLE MAC address in reverse. The MAC address can be obtained by being in close proximity to the Bluetooth device, effectively exposing the device ID. The ID can be used to track devices. Updated apps, version 5.1.6 for iOS and 2.2.5 for Android, have been released by the vendor to address the vulnerabilities in CVE-2016-6538, CVE-2016-6539, CVE-2016-6540 and CVE-2016-6541.
- CVSS 3.0
- 3.5 LOWCVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
- EPSS
- 1.29% probability · 70th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- thetrackr/trackr firmware
- Source
- cret@cert.org
EPSS 1.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/93874Third Party Advisory, VDB Entry
- https://blog.rapid7.com/2016/10/25/multiple-bluetooth-low-energy-ble-tracker-vulnerabilities/Exploit, Technical Description, Third Party Advisory
- https://www.kb.cert.org/vuls/id/617567Third Party Advisory, US Government Resource
- https://www.kb.cert.org/vuls/id/TNOY-AF3KCZThird Party Advisory, US Government Resource
- http://www.securityfocus.com/bid/93874Third Party Advisory, VDB Entry
- https://blog.rapid7.com/2016/10/25/multiple-bluetooth-low-energy-ble-tracker-vulnerabilities/Exploit, Technical Description, Third Party Advisory
- https://www.kb.cert.org/vuls/id/617567Third Party Advisory, US Government Resource
- https://www.kb.cert.org/vuls/id/TNOY-AF3KCZThird Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.