Vulnerability in Digisol DG-GR6821AC Router Due to Hard-Coded Credentials
CVE-2025-53754

5.1MEDIUM

Key Information:

Vendor

Digisol

Status
Xpon Onu Wi-fi Router (dg-gr6821ac)
Vendor
CVE Published:
16 July 2025

What is CVE-2025-53754?

This security flaw in the Digisol DG-GR6821AC Router arises from hard-coded root access credentials embedded in the device's firmware configuration. An attacker with physical access can exploit this vulnerability by extracting the firmware and analyzing its binary data to uncover the stored credentials. Successful exploitation leads to unauthorized admin access, posing a significant risk to the security and integrity of the device.

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Affected Version(s)

XPON ONU Wi-Fi Router (DG-GR6821AC) V3.2.XX

References

https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOT...
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Physical
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This vulnerability is reported by Shravan Singh from Kavach IoT Security.
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