VULNERABILITY INTELLIGENCE

CVE-2021-27954

CVSS score8.2 HIGH
EPSS probability0.94%
CISA KEVNot currently listed
Published2021-08-03
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Description

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.

Weakness classification

  • nvd@nist.gov: CWE-787

Primary references