CVE-2025-53758 Default Credential Vulnerability in Digisol DG-GR6821AC Router
An attacker with physical access can extract firmware to obtain hardcoded default admin credentials, gaining unauthorized access to the 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-2025-53758?
CVE-2025-53758 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 use of default admin credentials at its web management interface. An attacker with physical access could exploit this vulnerability by extracting the firmware and reverse engineer the binary data to access the hardcoded default credentials stored in the firmware of the targeted device.
Successful exploitation of this vulnerability could allow the attacker to gain unauthorized access to the targeted device.
Weakness: CWE-312
Which versions are affected by CVE-2025-53758?
How do I fix CVE-2025-53758?
No fix has been published for CVE-2025-53758 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-53758 being exploited?
There is no known exploitation of CVE-2025-53758 in the wild and no public exploit code.
Sources
Also known as GHSA-vj9q-gw7f-j56j.