CVE-2026-82928
HIGH
7,7
Source: [email protected]
Attack Vector: adjacent
Attack Complexity: high
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
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
1242
Inclusion of Undocumented Features or Chicken Bits
IncompleteCommon Consequences
Security Scopes Affected:
Confidentiality
Integrity
Availability
Access Control
Potential Impacts:
Modify Memory
Read Memory
Execute Unauthorized Code Or Commands
Gain Privileges Or Assume Identity
Bypass Protection Mechanism
Applicable Platforms
Technologies:
Not Technology-Specific, ICS/OT
https://cert.pl/posts/2026/09/CVE-2026-82928/
https://www.fif.com.pl/pl/strona-glowna/1367-mh-developer.html