Read the docs
TI-2025-33656 Aliases CVE-2025-53754GHSA-85v4-g9qp-63hc

Hard-coded Credentials Vulnerability in Digisol DG-GR6821AC Router

Priority LOW 23CWE-798Published · Updated

Key facts

Attack vector
Physical
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-798.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00204 10th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
DigisolXPON ONU Wi-Fi Router (DG-GR6821AC)V3.2.XX—No fix listedCNA
  • XPON ONU Wi-Fi Router (DG-GR6821AC) VendorDigisol Affected V3.2.XX Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-53754
  2. 2026-10-03 Alias added: GHSA-85v4-g9qp-63hc

References

Advisory 1

  • TI-2018-09119 DIGISOL DG-BR4000NG devices have a Buffer Overflow via a long Authorization HTTP header. CVSS 3.0CRITICAL 9.8
  • TI-2024-02094 Password Policy Bypass Vulnerability in Digisol Router CVSS 3.1CRITICAL 9.1
  • TI-2025-33659 Insecure Cookie Flags Vulnerability in Digisol DG-GR6821AC Router CVSS 4.0HIGH 8.7
  • TI-2017-04627 Privilege escalation vulnerability on the DIGISOL DG-HR1400 1.00.02 wireless router… CVSS 3.0HIGH 8.8
  • TI-2025-33658 Cleartext Transmission Vulnerability in Digisol DG-GR6821AC Router CVSS 4.0HIGH 8.7
  • TI-2017-04002 Multiple cross-site request forgery (CSRF) vulnerabilities in the access portal on the… CVSS 3.0HIGH 8.8
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences