Tew 827dru FirmwareOperating system · Trendnet

CVE-2024-28354

CRITICAL · 10.0 CVSS v3.1 Published 2024-03-15
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Public exploit Remotely reachable No privileges Zero-click

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
There is a command injection vulnerability in the TRENDnet TEW-827DRU router with firmware version 2.10B01. An attacker can inject commands into the post request parameters usapps.@smb[%d].username in the apply.cgi interface, thereby gaining root shell privileges.

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

Command injection vulnerability in TRENDnet TEW-827DRU router firmware 2.10B01 allows remote attackers to inject OS commands via the usapps.@smb[%d].username parameter in apply.cgi POST requests, achieving unauthenticated root shell access.

MitigationApply vendor firmware patch if available; if no patch exists, isolate device behind firewall, disable remote management, or replace the end-of-life device.

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
Tew 827dru FirmwareOperating system
Affected:= 2.10b01

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
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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 checks

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

  1. Identify device model
    Access the router web interface or check the device label to confirm the model is TRENDnet TEW-827DRU
    Affected if Device is not a TRENDnet TEW-827DRU (not affected)
  2. Check firmware version
    Log into the router web interface and navigate to Status or System section to view the firmware version, or use the command 'cat /proc/version' via telnet/ssh if available
    Affected if Firmware version is 2.10B01 (exactly this version is affected)
  3. Verify apply.cgi SMB endpoint exists
    Send a POST request to the apply.cgi endpoint with a test parameter such as usapps.@smb[0].username to confirm the interface accepts this parameter
    Affected if The apply.cgi accepts the usapps.@smb parameter without authentication (vulnerable)
  4. Check remote management exposure
    Inspect router firewall settings to determine if the web management interface (port 80/443) is exposed to the WAN/internet
    Affected if Remote management is enabled and the router is internet-facing (exploitable remotely)

You are affected if you have a TRENDnet TEW-827DRU router running firmware version 2.10B01 with the apply.cgi SMB configuration interface accessible, especially if remote management is enabled.

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

Apply vendor firmware patch if available; if no patch exists, isolate device behind firewall, disable remote management, or replace the end-of-life device.

Fix this in Tew 827dru Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-28354 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-28354 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