CVE-2026-13561
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 was detected in Edimax EW-7478APC 1.04. The impacted element is the function formiNICbasic of the file /goform/formiNICbasic of the component POST Request Handler. The manipulation of the argument rootAPmac results in os command injection. The attack may be performed from remote. The exploit is now 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 confidenceThe Edimax EW-7478APC 1.04 router contains an OS command injection vulnerability in the POST request handler function formiNICbasic. The rootAPmac parameter passed to /goform/formiNICbasic is not properly sanitized before being used in an OS command, allowing remote attackers to execute arbitrary commands via crafted POST requests.
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
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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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Identify the device modelAccess the router's web interface or check the device label/marketing materials to confirm the model is Edimax EW-7478APCAffected if The device is not an Edimax EW-7478APC router
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Check the firmware versionLog into the router web management interface and navigate to System Status or Firmware Upgrade page to find the installed firmware version, or use the router's administrative console to query the firmware versionAffected if The firmware version is 1.04 or falls within the affected version range containing this vulnerability
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Verify the web management interface is activeAttempt to access the router's IP address on HTTP/HTTPS ports (typically 80/443) from an authorized network locationAffected if The web management interface responds and accepts authentication
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Check for the vulnerable endpointSend a GET request to http://[router-ip]/goform/formiNICbasic or inspect the router's web server configuration to verify the formiNICbasic handler existsAffected if The /goform/formiNICbasic endpoint exists and is accessible
You are affected if you have an Edimax EW-7478APC router running firmware version 1.04 (or an affected version) with the web management interface accessible and the formiNICbasic endpoint present.
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.
From vendor dataRestrict network access to the device's web management interface. If available, update to a patched firmware version. Consider network segmentation and disabling the affected feature if not needed.
- Consultation4.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-13561 — 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-2026-13561 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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- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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