CVE-2026-82928 Undocumented access path in mH-DEVELOPER
Hardcoded SSH key allows attackers to gain root access on mH-DEVELOPER smart home devices, leading to full system compromise.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-82928?
CVE-2026-82928 is a high-severity vulnerability in F&F Filipowski mH-DEVELOPER, published on 28 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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
Weakness: CWE-1242
Which versions are affected by CVE-2026-82928?
How do I fix CVE-2026-82928?
No fix has been published for CVE-2026-82928 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-82928 being exploited?
There is no known exploitation of CVE-2026-82928 in the wild and no public exploit code.
Sources
Also known as GHSA-27f6-7954-3wm7.