CVE-2026-9482
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 · uneditedA vulnerability has been found in Edimax EW-7438RPn 1.31. This impacts the function formSDHCP of the file /goform/formSDHCP. Such manipulation of the argument submit-url leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public 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 confidenceStack-based buffer overflow in Edimax EW-7438RPn v1.31 WiFi range extender's web interface (function formSDHCP in /goform/formSDHCP). The submit-url parameter is not properly bounds-checked, allowing remote attackers to overflow a stack buffer and potentially execute arbitrary code. The exploit is publicly available and the vendor did not respond to disclosure.
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 checksWork through these to decide whether this CVE applies to you.
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Confirm device modelCheck the device label or access the web interface to verify the model is Edimax EW-7438RPnAffected if Device is Edimax EW-7438RPn
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Check firmware versionAccess the router web interface, navigate to System or Firmware settings, and identify the firmware versionAffected if Firmware version is v1.31 or cannot be determined to be a different version
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Verify web interface accessibilityAttempt to access the device web interface from the network by browsing to the device IPAffected if Web interface is reachable from network
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Check remote management statusIn the web interface, look for Remote Management, Access Control, or Administration settings to see if remote web access is enabledAffected if Remote management or web interface is accessible from outside the local network
User is affected if they have an Edimax EW-7438RPn device running firmware v1.31 with its web interface accessible to the network.
Generated from the published advisory. Verify against your own configuration.
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 · scopedSince no vendor patch is available and the device is end-of-life, isolate the device on a restricted network segment or replace with a supported device. If continued use is required, disable the web interface or restrict administrative access to trusted IPs only.
- 1. Immediately network-isolate the affected Edimax EW-7438RPn device by placing it in a restricted VLAN or behind a firewall with no external access.
- 2. Disable the device if network isolation is not feasible, as the vulnerability is remotely exploitable with publicly available exploit code.
- 3. Replace the affected device with a currently-supported wireless range extender or access point from a vendor that provides regular security updates.
- 4. If the device must remain in service temporarily, monitor network traffic for signs of exploitation targeting the /goform/formSDHCP endpoint.
- 5. Audit all devices on the same network segment for potential compromise, as a successful exploit could be used as a pivot point.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-9482 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-9482 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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