CVE-2020-28952

HIGH
7.5
CVSS Score
Published: March 9, 2021 at 07:31 PM UTC
Updated: June 17, 2026 at 03:10 AM UTC
4 products affected across 1 vendorHomey FirmwareHomey Pro FirmwareHomey Pro

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.0.0
Affected range stops below 5.0.0, so it looks safe — our inference, not a vendor statement
homey-homey (same device)
v < 5.0.0
Affected range stops below 5.0.0, so it looks safe — our inference, not a vendor statement
homey-homey-pro (same device)
80%
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-798

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