CVE-2020-28952 json
An issue was discovered on Athom Homey and Homey Pro devices before 5.0.0.
published 2021-03-09 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-21338
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
An issue was discovered on Athom Homey and Homey Pro devices before 5.0.0. ZigBee hub devices should generate a unique Standard Network Key that is then exchanged with all enrolled devices so that all inter-device communication is encrypted. However, the cited Athom products use another widely known key that is designed for testing purposes: "01030507090b0d0f00020406080a0c0d" (the decimal equivalent of 1 3 5 7 9 11 13 15 0 2 4 6 8 10 12 13), which is human generated and static across all issued devices.
Patch / fix
- homey homey_firmware 5.0.0
- homey homey_pro_firmware 5.0.0
Exploit prediction
1.30% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-798 Use of Hard-coded Credentials
References
-
developer.athom.com
/firmware
release-notes, vendor-advisory
-
homey.app
/en-us/
product, vendor-advisory
-
yougottahackthat.com
/blog/1260/athom-homey-security-static-and-well-known-keys-cve-2020-28952
third-party-advisory
Sources
- CVE List CVE-2020-28952
- NVD CVE-2020-28952
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