{"id":"CVE-2025-32877","aliases":["EUVD-2025-18743","GHSA-9mq8-xcmp-hwr5"],"status":"published","title":"An issue was discovered on COROS PACE 3 devices through 3.0808.0. It identifies itself as a...","description":"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.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00713,"percentile":0.54137,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2025-06-20T00:00:00Z","modified":"2026-06-17T09:12:44Z","products":[{"vendor":"yftech","product":"coros_pace_3_firmware"}],"references":[{"url":"https://syss.de","tags":["Third Party Advisory"]},{"url":"https://support.coros.com/hc/en-us/articles/20087694119828-COROS-PACE-3-Release-Notes","tags":["Release Notes"]},{"url":"https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-024.txt","tags":["exploit","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-32877"},{"url":"https://github.com/advisories/GHSA-9mq8-xcmp-hwr5"}],"sources":{"cve":[{"id":"CVE-2025-32877","description":"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.","status":"published","published":"2025-06-20T00:00:00Z","modified":"2025-06-24T15:26:31.831Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:32:46.42892Z"}],"euvd":[{"id":"EUVD-2025-18743","description":"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.","status":"published","published":"2025-06-20T00:00:00Z","modified":"2025-06-24T15:26:31Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:32:17.4539Z"}],"ghsa":[{"id":"GHSA-9mq8-xcmp-hwr5","title":"An issue was discovered on COROS PACE 3 devices through 3.0808.0. It identifies itself as a...","description":"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.","status":"published","published":"2025-06-20T15:30:37Z","modified":"2025-07-08T15:32:50Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:02:56.619633Z"}],"nvd":[{"id":"CVE-2025-32877","description":"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.","status":"published","published":"2025-06-20T14:15:28.25Z","modified":"2026-06-17T09:12:44.33Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:11:14.091082Z"}]}}