CVE-2025-53758

Unauthorized device access via firmware-stored default credentials

Published Jul 16, 2025 · Updated Jul 16, 2025

Cleartext credential storage in Digisol DG-GR6821AC firmware V3.2.XX allows physically proximate attackers to obtain device access. The firmware binary stores hardcoded default administrator credentials used by the web management interface, exposing them to reverse engineering after firmware extraction. Exploitation requires physical access to extract the firmware; the disclosed consequence is unauthorized device access through the management interface.

CVSS severity5.1
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext credential storage in Digisol DG-GR6821AC firmware V3.2.XX allows physically proximate attackers to obtain device access. The firmware binary stores hardcoded default administrator credentials used by the web management interface, exposing them to reverse engineering after firmware extraction. Exploitation requires physical access to extract the firmware; the disclosed consequence is unauthorized device access through the management interface.

The record

CVE
CVE-2025-53758
Published
Jul 16, 2025
Updated
Jul 16, 2025
Vendor
Digisol
Product
DG-GR6821AC
Classifications
CWE-312, T1555
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=V3.2.XX

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Digisol · DG-GR6821ACversion=V3.2.XX

Published CVSS scores

5.1Indian Computer Emergency Response Team (CERT-In)CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information
T1555Credentials from Password Stores

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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