CVE-2026-82928

HighCVSS 7.7/10Last modified Sep 28, 2026

Description

mH-DEVELOPER smart home module contains a hardcoded SSH public key in /root/.ssh/authorized_keys, serving as a potential backdoor. The SSH daemon allows root login via key authentication and starts automatically. An attacker with the matching private key can gain a root shell on any affected device, resulting in full system compromise. The key cannot be removed without remounting the file system and survives a factory reset. Vendor notes that this functionality was used only for service purposes.

This issue was fixed in version 3.0.30

Metrics

CVSS 4.0 7.7/10

CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

CWE-1242

Affected software

Vendor	Product	Versions
F&F Filipowski	mH-DEVELOPER	< 3.0.30

References

Timeline

Published: Sep 28, 2026
Last modified: Sep 28, 2026
NVD status: Deferred

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