Classic Buffer OverflowWeakness · CWE-120

CVE-2023-46271

CRITICAL · 9.8 CVSS v3.1 Published 2025-02-19
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
Extreme Networks IQ Engine before 10.6r1a, and through 10.6r4 before 10.6r5, has a buffer overflow. This issue arises from the ah_webui service, which listens on TCP port 3009 by default.

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

A buffer overflow vulnerability exists in the ah_webui service of Extreme Networks IQ Engine, which listens on TCP port 3009. This heap or stack overflow can be exploited remotely without authentication, potentially allowing arbitrary code execution with elevated privileges on the affected wireless infrastructure devices.

MitigationUpgrade IQ Engine to version 10.6r5 or later (or 10.6r1a). If immediate patching is not feasible, restrict network access to TCP port 3009 via firewalls or ACLs to limit exposure to untrusted networks.

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. Verify if ah_webui service is exposed on TCP port 3009
    Use netstat, ss, or a port scanner to check if TCP port 3009 is listening on the device interface
    Affected if Port 3009 is open and accepting connections on a network-facing interface
  2. Confirm the IQ Engine version installed
    Access the device CLI or web interface and retrieve the firmware/IQ Engine version information
    Affected if The installed IQ Engine version is 10.6r4 or earlier, or any version prior to 10.6r1a
  3. Determine if remote management or guest SSID features using ah_webui are enabled
    Review the device configuration to see if the web UI service on port 3009 is enabled for remote administration
    Affected if The ah_webui service is enabled and accessible over network interfaces reachable from untrusted networks

A device is affected if it runs IQ Engine version 10.6r4 or earlier (or versions before 10.6r1a) and has the ah_webui service listening on TCP port 3009 accessible from a network where attackers could reach it.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade IQ Engine to version 10.6r5 or later (or 10.6r1a). If immediate patching is not feasible, restrict network access to TCP port 3009 via firewalls or ACLs to limit exposure to untrusted networks.

Recommended fix High confidence

IQ Engine 10.6r5

  1. 1. Identify all Extreme Networks IQ Engine wireless access points and controllers running affected versions (before 10.6r1a, or versions 10.6r1a through 10.6r4).
  2. 2. Download IQ Engine version 10.6r5 from the official Extreme Networks support portal.
  3. 3. Plan an upgrade window and ensure backups of current configurations are available.
  4. 4. Upgrade the affected IQ Engine devices to version 10.6r5 following Extreme Networks standard upgrade procedures.
  5. 5. After upgrade, verify the ah_webui service (TCP port 3009) is running the patched version.
  6. 6. Confirm the vulnerability is no longer present through vulnerability scanning or penetration testing.
Caveat Review Extreme Networks release notes for 10.6r5 to check for any configuration or feature changes that may affect existing deployments.

Generated from the published advisory — verify against the referenced sources before acting.

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

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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-2023-46271 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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