CVE-2025-53754 Hard-coded Credentials Vulnerability in Digisol DG-GR6821AC Router

Medium 5.1 Published Updated

An attacker with physical access can extract firmware to obtain hard-coded root credentials, gaining admin access to the Digisol router.

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-2025-53754?

CVE-2025-53754 is a medium-severity vulnerability in Digisol XPON ONU Wi-Fi Router (DG-GR6821AC), published on 16 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

This vulnerability exists in Digisol DG-GR6821AC Router due to hard-coded Root Access Credentials in system configuration of the device firmware. An attacker with physical access could exploit this vulnerability by extracting the firmware and analyzing the binary data to obtain the stored root access credentials.

Successful exploitation of this vulnerability could allow the attacker to gain admin access to the targeted device.

Weakness: CWE-798

Which versions are affected by CVE-2025-53754?

How do I fix CVE-2025-53754?

No fix has been published for CVE-2025-53754 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-53754 being exploited?

There is no known exploitation of CVE-2025-53754 in the wild and no public exploit code.

Sources

Also known as GHSA-85v4-g9qp-63hc.

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