Missing AuthenticationWeakness · CWE-306

CVE-2025-58083

CRITICAL · 10.0 CVSS v3.1 Published 2025-11-15
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
General Industrial Controls Lynx+ Gateway  is missing critical authentication in the embedded web server which could allow an attacker to remotely reset the device.

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 · moderate confidence

This is a critical authentication bypass vulnerability in the General Industrial Controls Lynx+ Gateway's embedded web server. The flaw allows unauthenticated remote attackers to reset the device due to missing authentication checks on specific endpoints, potentially causing denial of service and disrupting industrial control operations.

MitigationApply the vendor-supplied patch or firmware update immediately to remediate the authentication bypass. If a patch is unavailable, implement network segmentation and firewall rules to restrict access to the web server interface, limiting exposure to trusted networks only.

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

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
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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 Lynx+ Gateway devices on your network
    Scan your network for devices with product identification strings 'Lynx+' or 'Lynx Plus Gateway' or vendor 'General Industrial Controls'. Use network scanning tools or review asset inventories.
    Affected if A Lynx+ Gateway device is present in your environment.
  2. Locate the embedded web server interface
    Check if port 80, 443, or common web server ports are open on Lynx+ Gateway devices. Review firewall rules and network configurations to determine web interface accessibility.
    Affected if The web server interface is network-accessible.
  3. Test unauthenticated access to reset endpoints
    Attempt to access common reset endpoints (such as /reset, /reboot, /factory_reset, or similar paths) via HTTP/HTTPS without providing credentials. Compare behavior against documented authentication requirements.
    Affected if Reset or reboot actions execute without requiring authentication.
  4. Review authentication configuration
    Access the web interface with valid credentials and verify that sensitive functions (device reset, configuration changes) require authentication. Check if any endpoints bypass the normal login flow.
    Affected if Authentication is missing or can be bypassed on device reset endpoints.

Your environment is affected if you have a Lynx+ Gateway with its web interface exposed and specific endpoints allow unauthenticated device reset operations.

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

Apply the vendor-supplied patch or firmware update immediately to remediate the authentication bypass. If a patch is unavailable, implement network segmentation and firewall rules to restrict access to the web server interface, limiting exposure to trusted networks only.

Have this fixed Scoped from the published advisory
  • Consultation6.0 h
  • Implementation8.0 h
  • Testing8.0 h
  • Review / QA4.0 h
26.0 hours of engineering $4,560
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Scan for this in your stack

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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-2025-58083 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
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