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InstantOperating system · Arubanetworks

CVE-2018-16417

HIGH · 7.5 CVSS v3.1 Published 2019-10-30
Fix available
A fix is available. Upgrade to 4.2.4.12 / 6.5.4.11 or later.
See remediation →
84/100
Remediation priority · High
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
Aruba Instant 4.x prior to 6.4.4.8-4.2.4.12, 6.5.x prior to 6.5.4.11, 8.3.x prior to 8.3.0.6, and 8.4.x prior to 8.4.0.1 allows Command injection.

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

Aruba Instant versions 4.x, 6.5.x, 8.3.x, and 8.4.x contain a command injection vulnerability allowing remote attackers to execute arbitrary commands on the underlying system, likely through unsanitized user input in the web interface or API.

MitigationUpgrade to the specified fixed versions (6.4.4.8-4.2.4.12, 6.5.4.11, 8.3.0.6, or 8.4.0.1) or later. If immediate patching is not possible, restrict network access to the management interface.

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
InstantOperating system
Affected:>= 4.0.0.0, < 4.2.4.12>= 6.5.0.0, < 6.5.4.11>= 8.3.0.0, < 8.3.0.6>= 8.4.0.0, < 8.4.0.1
W1750d FirmwareOperating system
Affected:< 8.4.0.1

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
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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 Aruba Instant version
    Access the device CLI and run 'show version' or log into the web UI and locate the version information typically displayed on the dashboard or in the Maintenance section
    Affected if The displayed version falls within any of these ranges: 4.0.0.0 to 4.2.4.11, 6.5.0.0 to 6.5.4.10, 8.3.0.0 to 8.3.0.5, or 8.4.0.0
  2. Identify Siemens W1750d firmware version
    Access the device through its management interface and locate the firmware version in the system information or status page
    Affected if The firmware version is lower than 8.4.0.1
  3. Verify web interface accessibility
    Attempt to reach the device management web interface via HTTPS on the expected management IP address or hostname
    Affected if The web interface is reachable from network segments that include untrusted users, indicating the attack surface is exposed

You are affected if your Aruba Instant or Siemens W1750d version is within the vulnerable ranges listed and the management web interface is network-accessible.

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
Upgrade available Upgrade to 4.2.4.12 / 6.5.4.11 / 8.3.0.6 or later
Fixed in 4.2.4.126.5.4.118.3.0.6
Interim mitigation

Upgrade to the specified fixed versions (6.4.4.8-4.2.4.12, 6.5.4.11, 8.3.0.6, or 8.4.0.1) or later. If immediate patching is not possible, restrict network access to the management interface.

Fix this in Instant Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,640
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,224.

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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-2018-16417 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