CVE-2020-12702: Coolkit Ewelink

Medium severity, CVSS 4.6. EPSS: 0.3% chance of exploitation in the next 30 days.

Weak encryption in the Quick Pairing mode in the eWeLink mobile application (Android application V4.9.2 and earlier, iOS application V4.9.1 and earlier) allows physically proximate attackers to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during the pairing process.

Affected products

• Coolkit Ewelink: up to and including 4.9.1; up to and including 4.9.2

Published 2021-02-24. Last modified 2026-06-17.