CVE-2021-28152 Hardcoded credentials in n/a

Critical 9.8 Published 6 May 2021 Updated 3 Aug 2024

Attackers can gain root shell access via Telnet using hardcoded default credentials on Hongdian H8922 devices.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-28152?

CVE-2021-28152 is a critical vulnerability in n/a, published on 6 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Hongdian H8922 3.0.5 devices have an undocumented feature that allows access to a shell as a superuser. To connect, the telnet service is used on port 5188 with the default credentials of root:superzxmn.

Weakness: CWE-287

Which versions are affected by CVE-2021-28152?

It affects 1 product.

Products include Hongdian H8922 Firmware.

How do I fix CVE-2021-28152?

No fix has been published for CVE-2021-28152 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-28152 being exploited?

There is no known exploitation of CVE-2021-28152 in the wild and no public exploit code.

Sources

Also known as GHSA-pqm8-v9ww-9q73.