dbcve.org
N200re FirmwareOperating system · Totolink

CVE-2020-23617

MEDIUM · 6.1 CVSS v3.1 Published 2022-05-02
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

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 cross site scripting (XSS) vulnerability in the error page of Totolink N200RE and N100RE Routers 2.0 allows attackers to execute arbitrary web scripts or HTML via SCRIPT element.

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 confidence

Cross-site scripting (XSS) vulnerability in the error page of Totolink N200RE and N100RE routers (firmware 2.0) allows attackers to inject arbitrary JavaScript or HTML via SCRIPT elements, potentially enabling session hijacking, phishing, or defacement.

MitigationContact Totolink for patched firmware; if unavailable, disable remote router administration interfaces or implement WAF/IPS filtering at upstream network perimeter devices to block malicious payloads.

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
N200re FirmwareOperating system
Affected:= 2.0
N100re FirmwareOperating system
Affected:= 2.0

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
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify router model
    Check the device label or web interface for model number - look for Totolink N200RE or N100RE
    Affected if Router model is N200RE or N100RE
  2. Check firmware version
    Access router web admin interface (typically 192.168.1.1) and navigate to System Status or Firmware Info page to view installed firmware version
    Affected if Firmware version displays as exactly 2.0
  3. Confirm web administration interface is enabled
    Attempt to access the router web interface on the default IP address
    Affected if Web interface is reachable on LAN or WAN (remote management enabled)
  4. Identify error page accessibility
    Trigger an error condition on the router web interface by submitting malformed input or navigating to a non-existent page
    Affected if Error page renders without proper sanitization of user input

User is affected if the router is a Totolink N200RE or N100RE running firmware version 2.0 and the web administration interface is accessible, as the error page contains the reflected XSS vulnerability.

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

Contact Totolink for patched firmware; if unavailable, disable remote router administration interfaces or implement WAF/IPS filtering at upstream network perimeter devices to block malicious payloads.

Fix this in N200re Firmware Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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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-2020-23617 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
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data