Vulnerability Description
An issue was discovered on COROS PACE 3 devices through 3.0808.0. The BLE implementation of the COROS smartwatch does not support LE Secure Connections and instead enforces BLE Legacy Pairing. In BLE Legacy Pairing, the Short-Term Key (STK) can be easily guessed. This requires knowledge of the Temporary Key (TK), which, in the case of the COROS Pace 3, is set to 0 due to the Just Works pairing method. An attacker within Bluetooth range can therefore perform sniffing attacks, allowing eavesdropping on the communication.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Yftech | Coros Pace 3 Firmware | <= 3.0808.0 |
| Yftech | Coros Pace 3 | - |
Related Weaknesses (CWE)
References
- https://support.coros.com/hc/en-us/articles/20087694119828-COROS-PACE-3-Release-Release Notes
- https://syss.deThird Party Advisory
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-023.tExploitThird Party Advisory
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-023.tExploitThird Party Advisory
FAQ
What is CVE-2025-32876?
CVE-2025-32876 is a vulnerability with a CVSS score of 6.8 (MEDIUM). An issue was discovered on COROS PACE 3 devices through 3.0808.0. The BLE implementation of the COROS smartwatch does not support LE Secure Connections and instead enforces BLE Legacy Pairing. In BLE ...
How severe is CVE-2025-32876?
CVE-2025-32876 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-32876?
Check the references section above for vendor advisories and patch information. Affected products include: Yftech Coros Pace 3 Firmware, Yftech Coros Pace 3.