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CVE-2025-53755: Cleartext Storage Vulnerability in Digisol DG-GR6821AC Router

• Severity: medium (CVSS 5.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-16 · updated 2026-06-17
• Weakness: CWE-312

Description

This vulnerability exists in Digisol DG-GR6821AC Router due to storage of credentials and PINS without encryption in the device firmware. An attacker with physical access could exploit this vulnerability by extracting the firmware and reverse engineer the binary data to access the unencrypted data stored in the firmware of targeted device. Successful exploitation of this vulnerability could allow the attacker to gain unauthorized access to the network of the targeted device.

Affected products

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

References

• https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01&VLCODE=CIVN-2025-0147

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