Vulnerability in Ecobee Ecobee3 Lite
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 · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (65.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Ecobee Ecobee3 Lite
- Ecobee Ecobee3 Lite Firmware — versions 4.5.81.200
Weakness classification (CWE)
References
- www.l9group.com/advisories/hard-coded-default-root-credentials-for-all-ecobee3-… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27952?
- CVE-2021-27952 is a critical-severity vulnerability in Ecobee Ecobee3 Lite, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2021-08-03.
- How severe is CVE-2021-27952?
- Critical severity. CVSS v3 base score is 9.8 out of 10.