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Vap2500 FirmwareOperating system · Arris

CVE-2014-8423

HIGH · 10.0 CVSS v2.0 Published 2014-11-28
Fix available
A fix is available. Upgrade to after 08.41 or later.
See remediation →
100/100
Remediation priority · Urgent
High EPSS 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
Unspecified vulnerability in the management portal in ARRIS VAP2500 before FW08.41 allows remote attackers to execute arbitrary commands via unknown vectors.

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

The ARRIS VAP2500 management portal contains an unspecified vulnerability allowing remote attackers to execute arbitrary commands. This is likely a command injection flaw in the web interface that fails to properly sanitize input. The vulnerability is resolved in firmware version FW08.41 and later.

MitigationUpgrade the VAP2500 firmware to version FW08.41 or later. If the device cannot be updated, disable remote management access and restrict the portal to trusted internal networks only.

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
Vap2500 FirmwareOperating system
Affected:<= 08.41

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
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/Au:N/C:C/I:C/A:C

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 the device model
    Access the device's web management interface (typically at the device's IP address) and locate the system information or status page to confirm it is an ARRIS VAP2500 device. Alternatively, check the device label or documentation.
    Affected if The device is not an ARRIS VAP2500 unit.
  2. Check the installed firmware version
    In the web interface, navigate to the Administration, System, or Status section and locate the firmware version field. Record the version number displayed (format typically shows as XX.XX, for example 08.40 or earlier).
    Affected if The displayed firmware version is 08.41 or lower, or if no version is displayed and the device is a VAP2500.
  3. Verify if remote management access is enabled
    In the web interface, go to the Administration, Management, or Access Control settings. Look for options such as 'Remote Management', 'Web GUI Access', or 'HTTP/HTTPS Access' and check whether they are enabled for external (WAN) interfaces.
    Affected if Remote management access is enabled and the management portal is reachable from outside the local network.
  4. Test external accessibility of the management portal
    From a network outside the device's local subnet, attempt to reach the device's public IP address on common web ports (80, 443, 8080) using a browser or curl command. Confirm whether the login page is accessible.
    Affected if The management portal login page loads when accessed from an external network, indicating the interface is exposed to the internet or untrusted networks.
  5. Review access control rules
    If the device is behind a firewall or router, examine any port forwarding rules, NAT configurations, or firewall policies that may expose the device's web interface to external networks.
    Affected if Port forwarding or firewall rules exist that allow external access to the device's management ports.

A user is affected if they are operating an ARRIS VAP2500 device with firmware version 08.41 or lower that has its web management portal accessible from untrusted networks.

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
Upgrade available Upgrade to a release after 08.41
Interim mitigation

Upgrade the VAP2500 firmware to version FW08.41 or later. If the device cannot be updated, disable remote management access and restrict the portal to trusted internal networks only.

Recommended fix Moderate confidence

FW08.41 or later

  1. Access the ARRIS VAP2500 management portal through its web interface
  2. Navigate to the Administration or System section of the firmware settings
  3. Locate the firmware upgrade option
  4. Upload and install firmware version FW08.41 or later
  5. After upgrade, verify the new firmware version is installed
  6. Restart the device if prompted
Caveat Firmware upgrades may temporarily interrupt connectivity; ensure stable power during upgrade process

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

Fix this in Vap2500 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

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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-2014-8423 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
  • 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