Heap-based Buffer Overflow Vulnerability in ecobee3 lite 4.5.81.200 HomeKit Wireless Access Control Setup Process

Heap-based Buffer Overflow Vulnerability in ecobee3 lite 4.5.81.200 HomeKit Wireless Access Control Setup Process

CVE-2021-27954 · HIGH Severity

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

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.

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