CVE-2026-7287
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** UNSUPPORTED WHEN ASSIGNED ** A buffer overflow vulnerability in the formWep(), formWlAc(), formPasswordSetup(), formUpgradeCert(), and formDelcert() functions of the “webs” binary in Zyxel NWA1100-N customized firmware version 1.00(AACE.1)C0 could allow an attacker to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request to a vulnerable device.
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 confidenceMultiple buffer overflow vulnerabilities exist in the 'webs' web server binary of Zyxel NWA1100-N firmware in functions formWep(), formWlAc(), formPasswordSetup(), formUpgradeCert(), and formDelcert(). These functions lack proper bounds checking when processing HTTP request parameters, allowing crafted requests to overflow buffers and crash the service.
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= 1.00\(aace.1\)c0CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 model is Zyxel NWA1100-NLocate the device label or access the web interface and verify the model identifier shows NWA1100-NAffected if Device model is not NWA1100-N (not affected)
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Check installed firmware versionAccess the device web interface via HTTP/HTTPS, navigate to the Status or Maintenance section, and record the firmware version displayedAffected if Firmware version is exactly 1.00(aace.1)c0 (affected); if version differs, compare to this exact version to determine status
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Verify the webs web server is accessibleAttempt to reach the device management interface by sending an HTTP request to the device IP on common ports (80 or 443)Affected if The web interface responds to HTTP requests and is reachable on the network
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Determine if remote management is exposedCheck the device network configuration or firewall rules to see if the management web interface is accessible from untrusted networks or the internetAffected if The web management interface is exposed to untrusted networks or the internet
A user is affected if they are running firmware version 1.00(aace.1)c0 on a Zyxel NWA1100-N device and the webs web server interface is network-accessible.
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 dataSince the device is marked unsupported with no patch available, recommended mitigations include: replacing the device with a supported model, restricting network access to the management interface via firewall rules, or disabling remote management if unnecessary.
- Consultation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-7287 — 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-2026-7287 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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