CVE-2021-27941

MediumCVSS 4.6/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 4.6/10CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
May 6, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-279426.8Vizio P65-F1 6.0.31.4-2 and E50x-E1 10.0.31.4-2 Smart TVs allow a threat actor to execute arbitrary code from a USB drive via the Smart CastCVE-2021-279437.5The pairing procedure used by the Vizio P65-F1 6.0.31.4-2 and E50x-E1 10.0.31.4-2 Smart TVs and mobile application is vulnerable to a brute-CVE-2021-279449.8Several high privileged APIs on the Vizio P65-F1 6.0.31.4-2 and E50x-E1 10.0.31.4-2 Smart TVs do not enforce access controls, allowing an unCVE-2021-279456.1The Squirro Insights Engine was affected by a Reflected Cross-Site Scripting (XSS) vulnerability affecting versions 2.0.0 up to and includinCVE-2021-279468.8SQL Injection vulnerability in MyBB before 1.8.26 via poll vote count. (issue 1 of 3).CVE-2021-279477.2SQL Injection vulnerability in MyBB before 1.8.26 via the Copy Forum feature in Forum Management. (issue 2 of 3).CVE-2021-279487.2SQL Injection vulnerability in MyBB before 1.8.26 via User Groups. (issue 3 of 3).CVE-2021-279496.1Cross-site Scripting vulnerability in MyBB before 1.8.26 via Custom moderator tools.CVE-2021-279508.8A SQL injection vulnerability in azurWebEngine in Sita AzurCMS through 1.2.3.12 allows an authenticated attacker to execute arbitrary SQL coCVE-2021-279529.8Hardcoded default root credentials exist on the ecobee3 lite 4.5.81.200 device. This allows a threat actor to gain access to the password-prCVE-2021-279537.5A NULL pointer dereference vulnerability exists on the ecobee3 lite 4.5.81.200 device in the HomeKit Wireless Access Control setup process. CVE-2021-279548.2A heap-based buffer overflow vulnerability exists on the ecobee3 lite 4.5.81.200 device in the HKProcessConfig function of the HomeKit Wirel
CVE-2021-27941: Medium severity, CVSS 4.6 | Vulnix