{"id":"CVE-2021-27941","aliases":["EUVD-2021-14659","GHSA-qrrq-x7wc-w5x9"],"status":"published","title":"Unconstrained Web access to the device's private encryption key in the QR code pairing mode in...","description":"Unconstrained Web access to the device's private encryption key in the QR code pairing mode in the eWeLink mobile application (through 4.9.2 on Android and through 4.9.1 on iOS) allows a physically proximate attacker to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during a device pairing process.","severity":{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00214,"percentile":0.11881,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-522","CWE-863"],"published":"2021-05-06T20:31:53Z","modified":"2026-06-17T03:45:38Z","products":[{"vendor":"coolkit","product":"ewelink"}],"references":[{"url":"https://play.google.com/store/apps/details?id=com.coolkit\u0026hl=en_US","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory"]},{"url":"https://apps.apple.com/us/app/ewelink-smart-home/id1035163158","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory"]},{"url":"https://github.com/salgio/eWeLink-QR-Code","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27941"},{"url":"https://github.com/advisories/GHSA-qrrq-x7wc-w5x9"}],"sources":{"cve":[{"id":"CVE-2021-27941","description":"Unconstrained Web access to the device's private encryption key in the QR code pairing mode in the eWeLink mobile application (through 4.9.2 on Android and through 4.9.1 on iOS) allows a physically proximate attacker to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during a device pairing process.","status":"published","published":"2021-05-06T20:31:53Z","modified":"2024-08-03T21:33:16.407Z","updated_at":"2026-11-02T14:33:04.679189Z"}],"euvd":[{"id":"EUVD-2021-14659","description":"Unconstrained Web access to the device's private encryption key in the QR code pairing mode in the eWeLink mobile application (through 4.9.2 on Android and through 4.9.1 on iOS) allows a physically proximate attacker to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during a device pairing process.","status":"published","published":"2021-05-06T20:31:53Z","modified":"2024-08-03T21:33:16Z","updated_at":"2026-11-03T03:24:48.366655Z"}],"ghsa":[{"id":"GHSA-qrrq-x7wc-w5x9","title":"Unconstrained Web access to the device's private encryption key in the QR code pairing mode in...","description":"Unconstrained Web access to the device's private encryption key in the QR code pairing mode in the eWeLink mobile application (through 4.9.2 on Android and through 4.9.1 on iOS) allows a physically proximate attacker to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during a device pairing process.","status":"published","published":"2022-05-24T19:01:26Z","modified":"2023-01-27T05:02:46Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:42:06.500861Z"}],"nvd":[{"id":"CVE-2021-27941","description":"Unconstrained Web access to the device's private encryption key in the QR code pairing mode in the eWeLink mobile application (through 4.9.2 on Android and through 4.9.1 on iOS) allows a physically proximate attacker to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during a device pairing process.","status":"published","published":"2021-05-06T21:15:07.597Z","modified":"2026-06-17T03:45:38.88Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:06:52.81233Z"}]}}