Mbnet.mini FirmwareOperating system · Mbconnectline

CVE-2024-45275

CRITICAL · 9.8 CVSS v3.1 Published 2024-10-15
Fix available
A fix is available. Upgrade to 2.3.1 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable 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
The devices contain two hard coded user accounts with hardcoded passwords that allow an unauthenticated remote attacker for full control of the affected devices.

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

Two hardcoded user accounts with hardcoded passwords exist in the firmware of affected devices, allowing any remote unauthenticated attacker to gain full administrative control of the device. This is a critical backdoor vulnerability where credentials cannot be changed by administrators.

MitigationImmediately remove hardcoded credentials from device firmware, implement proper authentication mechanisms with unique randomly-generated passwords, and deploy firmware updates to all affected devices.

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
Mbnet.mini FirmwareOperating system
Affected:< 2.3.1
Rex 100 FirmwareOperating system
Affected:< 2.3.1

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
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/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 device or access the device management interface to confirm the exact model name - verify it is either Mbconnectline Mbnet.mini or Helmholz Rex 100
    Affected if The device is one of the two affected products listed
  2. Check the installed firmware version
    Access the device web interface, administrative console, or use the vendor's configuration tool to retrieve the current firmware version number
    Affected if Firmware version is lower than 2.3.1
  3. Verify default credentials status
    Attempt to access the device administrative interface using the known hardcoded credentials or check if the default account passwords have been changed from vendor defaults
    Affected if The hardcoded/default accounts still have their original static passwords configured
  4. Assess network exposure
    Review network configuration and firewall rules to determine if the device administrative interface is accessible from untrusted networks or the internet
    Affected if Device administrative ports are reachable from outside the trusted network without network segmentation
  5. Review account configuration
    Access the device user management or account settings page to enumerate all configured accounts and identify any that were not created by administrators
    Affected if Unexpected or undocumented administrative accounts exist on the device

A user is affected if they are running Mbnet.mini or Rex 100 firmware below version 2.3.1 with the hardcoded vendor credentials still active and the device is network-accessible to potential attackers.

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 2.3.1 or later
Fixed in 2.3.1
Interim mitigation

Immediately remove hardcoded credentials from device firmware, implement proper authentication mechanisms with unique randomly-generated passwords, and deploy firmware updates to all affected devices.

Recommended fix Moderate confidence

Firmware version 2.3.1 or later for Mbnet.mini and Rex 100

  1. Contact the device manufacturer or vendor to obtain the firmware version 2.3.1 or later for Mbnet.mini and Rex 100 devices
  2. Follow the vendor's official firmware update procedure to upgrade the affected devices
  3. After upgrading, verify that the hardcoded credentials have been replaced with unique, device-specific passwords
  4. Confirm the firmware version has been successfully updated to 2.3.1 or later

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

Fix this in Mbnet.mini Firmware Scoped from the published advisory
  • Consultation6.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
34.0 hours of engineering $6,000
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $9,600.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-45275 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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-2024-45275 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