CVE-2019-3418
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 · uneditedAll versions up to V1.1.10P3T18 of ZTE ZXHN F670 product are impacted by cross-site scripting vulnerability (XSS). Due to incomplete input validation, an authorized user can exploit this vulnerability to execute malicious scripts.
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 confidenceAuthenticated XSS vulnerability in ZTE ZXHN F670 router web interface. Due to incomplete input validation, an authorized attacker can inject malicious JavaScript that executes in other users' browsers when they access the affected page.
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<= 1.1.10p3t18CVSS 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
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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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Check the router firmware versionAccess the router admin panel (typically at 192.168.1.1) and navigate to Status or Device Info section to view the firmware version. Alternatively, check the footer of admin pages or look for a version display in the system settings.Affected if The displayed firmware version is 1.1.10p3t18 or any version lower than this (1.1.10p3t18 and below).
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Verify web management interface is accessibleAttempt to access the router login page via HTTP/HTTPS on the LAN IP (commonly 192.168.1.1) or WAN IP if remote management is enabled.Affected if The web management interface returns a login prompt or admin dashboard, indicating it is reachable and potentially exploitable.
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Confirm authentication statusAttempt to log in with credentials. The vulnerability is authenticated XSS, meaning it requires a valid session. Check if default credentials (admin/admin, admin/ZXHN, or similar) are still active, or determine if you have valid admin access.Affected if You can successfully authenticate to the router admin panel, which would allow injection of malicious scripts through input fields.
You are affected if your ZTE ZXHN F670 router runs firmware version 1.1.10p3t18 or lower AND the web management interface is accessible with valid admin credentials.
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 dataApply vendor firmware update to patch input validation; if unavailable, deploy WAF rules to sanitize inputs and restrict web management interface access to trusted IPs.
- Consultation3.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,880.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-3418 — 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-2019-3418 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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