CVE-2025-53756 Cleartext Transmission Vulnerability in Digisol DG-GR6821AC Router

High 8.7 Published Updated

Remote attackers can intercept cleartext credentials from the web interface to gain unauthorized access to the router.

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-2025-53756?

CVE-2025-53756 is a high-severity vulnerability in Digisol XPON ONU Wi-Fi Router (DG-GR6821AC), published on 16 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

This vulnerability exists in Digisol DG-GR6821AC Router due to cleartext transmission of credentials in its web management interface. A remote attacker could exploit this vulnerability by intercepting the network traffic and capturing cleartext credentials.

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

Weakness: CWE-319

Which versions are affected by CVE-2025-53756?

How do I fix CVE-2025-53756?

No fix has been published for CVE-2025-53756 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-53756 being exploited?

There is no known exploitation of CVE-2025-53756 in the wild and no public exploit code.

Sources

Also known as GHSA-4cmm-32xh-qc83.

Is CVE-2025-53756 in your software?

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