CVE-2021-27952

Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.36%
Third-Party Advisory l9group.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.l9group.com/advisories/hard-coded-default-root-credentials-for-all-ecobee3-lite-devices third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-27952?
CVE-2021-27952 has been scored as a critical severity vulnerability.
How to fix CVE-2021-27952?
To fix CVE-2021-27952, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-27952 being actively exploited in the wild?
It is possible that CVE-2021-27952 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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