Cb3.1 FirmwareOperating system · Universal Robots

CVE-2018-10633

CRITICAL · 9.8 CVSS v3.0 Published 2018-07-11
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
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
Universal Robots Robot Controllers Version CB 3.1, SW Version 3.4.5-100 utilizes hard-coded credentials that may allow an attacker to reset passwords for the controller.

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

Universal Robots CB 3.1 controller running software version 3.4.5-100 contains hard-coded credentials embedded in the firmware that allow an attacker to bypass authentication and reset passwords for the controller. This is a critical authentication bypass vulnerability (CVSS 9.8) that enables unauthorized remote access to the industrial robot controller.

MitigationReplace hard-coded credentials with unique, strong passwords or implement proper credential management; restrict network access to the controller through network segmentation and firewall rules; coordinate with Universal Robots for firmware updates if available.

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
Cb3.1 FirmwareOperating system
Affected:= 3.4.5-100

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:3.0/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. Confirm controller model
    Locate the controller hardware and verify it is a Universal Robots CB3.1 controller. Check the physical label or access system information via the teach pendant.
    Affected if The controller is NOT a Universal Robots CB3.1 unit (different models are not affected)
  2. Identify installed firmware version
    Access the controller's web interface or use the teach pendant to navigate to System > About or equivalent menu to display the firmware version number.
    Affected if Firmware version is exactly 3.4.5-100 (no other versions are listed as affected)
  3. Assess network exposure
    Review the controller's network configuration to determine if it is reachable from network segments outside the local control system.
    Affected if Controller is directly accessible from untrusted or external networks
  4. Verify credential status
    Check whether the default hard-coded credentials remain in use for the controller's administrative or user interfaces.
    Affected if Default credentials have not been changed from factory defaults

The environment is affected only if it is a Universal Robots CB3.1 controller running firmware version 3.4.5-100 with network accessibility and unchanged default credentials.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Replace hard-coded credentials with unique, strong passwords or implement proper credential management; restrict network access to the controller through network segmentation and firewall rules; coordinate with Universal Robots for firmware updates if available.

Fix this in Cb3.1 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,480
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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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-2018-10633 in production — separate from our analysis above.

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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
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  • Version or environment caveats, and links to real fixes
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