Missing AuthenticationWeakness · CWE-306

CVE-2025-9574

CRITICAL · 10.0 CVSS v3.1 Published 2025-10-20
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
Missing Authentication for Critical Function vulnerability in ABB ALS-mini-s4 IP, ABB ALS-mini-s8 IP.This issue affects .  All firmware versions with the Serial Number from 2000 to 5166

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

Missing authentication vulnerability in ABB ALS-mini-s4 IP and ALS-mini-s8 IP devices allows unauthenticated attackers to access critical functions. The issue affects all firmware versions with serial numbers 2000-5166, enabling remote unauthenticated access to sensitive operations.

MitigationRestrict network exposure of affected devices via firewall rules and VLAN segmentation; contact ABB for patched firmware or compensating controls; assume compromise if devices are internet-facing.

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. Confirm device model is affected
    Identify the ABB device model by checking the device label, web interface header, or management console. Look for ALS-mini-s4 IP or ALS-mini-s8 IP designations.
    Affected if The device is an ABB ALS-mini-s4 IP or ALS-mini-s8 IP model
  2. Check device serial number range
    Retrieve the device serial number from the device label, web interface system info page, or management console. Compare the serial number to the affected range 2000-5166.
    Affected if The serial number falls within 2000-5166 inclusive
  3. Verify network accessibility of management interface
    Attempt to access the device web interface or management port from an unauthorized network location without providing credentials. Check if the HTTP/HTTPS management interface is reachable.
    Affected if The device management interface is accessible from an untrusted network without authentication
  4. Confirm critical functions accessible without auth
    Access the device web interface or API endpoints without logging in. Attempt to reach sensitive operation pages or functions such as configuration, firmware, or diagnostic areas.
    Affected if Critical functions or sensitive operation pages are accessible without any authentication credentials

A user is affected if they have an ABB ALS-mini-s4 IP or ALS-mini-s8 IP device with a serial number between 2000 and 5166 that has its management interface accessible from an untrusted network without requiring authentication.

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

Restrict network exposure of affected devices via firewall rules and VLAN segmentation; contact ABB for patched firmware or compensating controls; assume compromise if devices are internet-facing.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-9574 — 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-2025-9574 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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