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    CVE-2021-27952

    Hardcoded default root credentials exist on the ecobee3 lite 4.5.81.200 device. This allows a threat actor to gain access to the password-protected bootloader environment through the serial console.

    Published:Aug 3, 2021
    Last Modified:Nov 21, 2024
    EPS:Aug 3, 2021
    EPSS Score:0.00365
    CVSS Score:9.8

    Affected Products

    Vendor
    Ecobee
    Product
    Ecobee3 Lite
    Vendor
    Ecobee
    Product
    Ecobee3 Lite Firmware

    Exploits

    https://www.l9group.com/advisories/hard-coded-default-root-credentials-for-all-ecobee3-lite-deviceshttps://www.l9group.com/advisories/hard-coded-default-root-credentials-for-all-ecobee3-lite-devices

    Common Weakness Enumeration

    CWE-798 Use of Hard-coded Credentials

    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