Missing AuthenticationWeakness · CWE-306

CVE-2025-71318

CRITICAL · 9.8 CVSS v3.1 Published 2026-06-05
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
Public exploit 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
NetMan 204 fails to enforce authentication on its administrative pages and command endpoints. A remote, unauthenticated attacker can directly request administrative pages (such as administration.html, administration-commands.html, and configuration.html) to disclose sensitive information including LDAP configuration and active user details, and can invoke privileged UPS control commands — including shutdown, reboot, switch-on-bypass, and battery test — without supplying any credentials.

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

NetMan 204 network management device has a critical authentication bypass vulnerability where administrative pages (administration.html, administration-commands.html, configuration.html) and privileged UPS command endpoints are accessible without any authentication. An unauthenticated remote attacker can view sensitive LDAP configuration and user details, and execute dangerous UPS commands including shutdown, reboot, switch-on-bypass, and battery test.

MitigationApply vendor patch if available; otherwise implement strict network segmentation to restrict access to administrative interfaces to only trusted management networks, and consider placing the device behind a VPN or firewall that enforces authentication.

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
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. Confirm NetMan 204 device presence
    Identify if your network contains a NetMan 204 network management device by checking device inventory, DHCP leases, or network scans for this specific hardware model.
    Affected if A NetMan 204 device is present on the network
  2. Check if administrative login is enforced
    Attempt to access http://<device-ip>/administration.html without providing any credentials. Observe whether the page loads with full administrative content or redirects to a login prompt.
    Affected if The administrative page loads without requiring any authentication
  3. Verify command endpoint access control
    Attempt to access http://<device-ip>/administration-commands.html without authentication. Also test for common UPS command endpoints (check device documentation or try common paths like /ups commands, /bypass, /shutdown endpoints).
    Affected if Command endpoints are accessible without authentication
  4. Check for LDAP configuration exposure
    Access http://<device-ip>/configuration.html without authentication. Look for LDAP server settings, user account details, or other sensitive configuration that should require authentication to view.
    Affected if LDAP configuration and user details are visible without authentication
  5. Test for UPS command execution
    Send HTTP requests to UPS command endpoints (such as shutdown, reboot, switch-on-bypass, battery-test commands) without any authentication headers or credentials. Check if commands are accepted.
    Affected if UPS commands execute successfully without authentication

If the NetMan 204 device allows access to administrative pages or permits execution of UPS commands without any authentication, the environment is affected by this vulnerability.

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 vendor patch if available; otherwise implement strict network segmentation to restrict access to administrative interfaces to only trusted management networks, and consider placing the device behind a VPN or firewall that enforces authentication.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA2.0 h
20.0 hours of engineering $3,500
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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-2025-71318 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
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  • Version or environment caveats, and links to real fixes
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