VULNERABILITY INTELLIGENCE

CVE-2021-27952

CVSS score9.8 CRITICAL
EPSS probability1.13%
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:H/I:H/A:H

Description

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.

Weakness classification

  • nvd@nist.gov: CWE-798

Primary references