CVE Feed

    Dashboard / CVE / CVE-2021-27954

    CVE-2021-27954

    A heap-based buffer overflow vulnerability exists on the ecobee3 lite 4.5.81.200 device in the HKProcessConfig function of the HomeKit Wireless Access Control setup process. A threat actor can exploit this vulnerability to force the device to connect to a SSID or cause a denial of service.

    Published:Aug 3, 2021
    Last Modified:Nov 21, 2024
    EPS:Aug 3, 2021
    EPSS Score:0.00391
    CVSS Score:8.2

    Affected Products

    Vendor
    Ecobee
    Product
    Ecobee3 Lite
    Vendor
    Ecobee
    Product
    Ecobee3 Lite Firmware

    Exploits

    https://www.l9group.com/advisories/ecobee3-lite-heap-overflowhttps://www.l9group.com/advisories/ecobee3-lite-heap-overflow

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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