Memory Buffer Bounds ErrorWeakness · CWE-119

CVE-2026-9344

HIGH · 8.8 CVSS v3.1 Published 2026-05-24
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable 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
A security vulnerability has been detected in Edimax EW-7438RPn up to 1.31. The impacted element is an unknown function of the file /goform/formWpsStart of the component webs. Such manipulation of the argument pinCode/wlan-url leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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

Stack-based buffer overflow in Edimax EW-7438RPn wireless range extender web interface (firmware up to v1.31). The /goform/formWpsStart handler fails to properly validate input length for pinCode/wlan-url parameters before copying to stack buffers, allowing remote attackers to overflow and potentially execute arbitrary code.

MitigationSince the vendor did not respond and no patch is available, mitigate by disabling remote web management access, placing the device behind a restrictive firewall, and considering device replacement if network isolation is not feasible.

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/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 device model
    Access the device web interface or check the device label/menu for model number EW-7438RPn
    Affected if Device is not an Edimax EW-7438RPn model, then it is not affected by this specific CVE
  2. Identify firmware version
    Log into the device web interface and navigate to System Settings or Status page to find the firmware version number
    Affected if Firmware version is unknown or falls within the vulnerable version range for this model
  3. Verify web interface accessibility
    Attempt to access the device login page at the default IP (typically 192.168.1.1) via HTTP
    Affected if Web interface is not accessible from your network segment, reducing exposure
  4. Check WPS status
    In the device web interface, locate WPS settings (usually under Wireless or WPS configuration) and determine if WPS is enabled
    Affected if WPS is enabled and the device is a vulnerable EW-7438RPn firmware version, making exploitation possible
  5. Test vulnerable endpoint presence
    Send a request to /goform/formWpsStart on the device and observe if the endpoint responds
    Affected if The endpoint responds and WPS is enabled on a vulnerable firmware version

Your environment is affected if you have an Edimax EW-7438RPn device running a vulnerable firmware version with the web interface accessible and WPS functionality enabled.

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

Since the vendor did not respond and no patch is available, mitigate by disabling remote web management access, placing the device behind a restrictive firewall, and considering device replacement if network isolation is not feasible.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
16.0 hours of engineering $2,840
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Scan for this in your stack

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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-2026-9344 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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