CVE-2025-32877: Yftech Coros Pace 3 Firmware

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

An issue was discovered on COROS PACE 3 devices through 3.0808.0. It identifies itself as a device without input or output capabilities, which results in the use of the Just Works pairing method. This method does not implement any authentication, which therefore allows machine-in-the-middle attacks. Furthermore, this lack of authentication allows attackers to interact with the device via BLE without requiring prior authorization.

Affected products

• Yftech Coros Pace 3 Firmware: up to and including 3.0808.0

Published 2025-06-20. Last modified 2026-06-17.