CVE-2021-27941

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    CVE-2021-27941

    Published: 6 May 2021Last Modified: 10 Mar 2026

    Summary:

    Details: 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.

    References: , https://play.google.com/store/apps/details?id=com.coolkit&hl=en_US, https://apps.apple.com/us/app/ewelink-smart-home/id1035163158, https://github.com/salgio/eWeLink-QR-Code

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-27941 | CVE-DB