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G5dfr FirmwareOperating system · Elspec Ltd

CVE-2025-59392

MEDIUM · 6.8 CVSS v3.1 Published 2025-11-06
Fix available
A fix is available. Upgrade to 1.2.3.13 or later.
See remediation →
73/100
Remediation priority · Elevated
No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
On Elspec G5 devices through 1.2.2.19, a person with physical access to the device can reset the Admin password by inserting a USB drive (containing a publicly documented reset string) into a USB port.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The Elspec G5 device through version 1.2.2.19 contains a physical security vulnerability where an attacker with direct physical access can reset the administrator password by inserting a USB drive containing a publicly documented reset string into an exposed USB port. This bypasses all authentication mechanisms.

MitigationImplement physical security controls (locked enclosures, restricted facility access) to prevent unauthorized USB access; if available, apply vendor firmware updates that disable or secure the USB-based password reset mechanism.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
G5dfr FirmwareOperating system
Affected:< 1.2.3.13

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the device model
    Locate the physical Elspec G5 or G5dfr device and verify it is the affected product line. Check the device label, management interface, or documentation for the exact model number.
    Affected if The device is an Elspec G5 or G5dfr unit.
  2. Determine the installed firmware version
    Access the device management interface or check via serial/console connection to retrieve the current firmware version. Compare the version number to the affected range.
    Affected if The firmware version is 1.2.2.19 or earlier, or any version less than 1.2.3.13.
  3. Inspect for exposed USB ports
    Visually examine the device chassis and front panel to identify any accessible USB ports that could accept a USB drive without requiring tool access or chassis removal.
    Affected if An exposed USB port is present and reachable without dismantling the device.
  4. Evaluate physical security of the device location
    Assess whether the device is deployed in a secured area with access controls, locked enclosures, or surveillance that prevents unauthorized physical access.
    Affected if The device is in an unrestricted or poorly secured location where an attacker could approach and insert a USB drive.

You are affected if you have an Elspec G5dfr device running firmware below version 1.2.3.13 with an exposed USB port in a location accessible to unauthorized individuals.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.2.3.13 or later
Fixed in 1.2.3.13
Interim mitigation

Implement physical security controls (locked enclosures, restricted facility access) to prevent unauthorized USB access; if available, apply vendor firmware updates that disable or secure the USB-based password reset mechanism.

Recommended fix Moderate confidence

G5dfr Firmware 1.2.3.13

  1. Identify the current firmware version on the Elspec G5 device through the admin interface or device diagnostics
  2. Download firmware version 1.2.3.13 or later from the official Elspec vendor source (www.elspec-ltd.com)
  3. Review the vendor's firmware upgrade documentation for the G5dfr device
  4. Follow the vendor's prescribed procedure to apply the firmware update, typically via the device's web interface or management console
  5. After upgrading, verify the new firmware version is correctly installed
  6. Upon reboot, access the admin interface and change the default/admin password to a strong, unique password
  7. If USB ports are not required for operation, consider disabling them via device configuration to reduce physical attack surface

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in G5dfr Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA4.0 h
26.0 hours of engineering $4,580
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-59392 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data