Tew 827dru FirmwareOperating system · Trendnet

CVE-2019-13152

HIGH · 8.8 CVSS v3.0 Published 2019-07-02
Fix available
A fix is available. Upgrade to 2.05b11 or later.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable 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
An issue was discovered in TRENDnet TEW-827DRU firmware before 2.05B11. There is a command injection in apply.cgi (exploitable with authentication) via the IP Address in Add Gaming Rule.

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

This is a command injection vulnerability in the TRENDnet TEW-827DRU router firmware. The apply.cgi script fails to properly sanitize the IP Address field in the Add Gaming Rule feature, allowing an authenticated attacker to inject arbitrary OS commands. With authentication, an attacker can achieve remote code execution with web server privileges.

MitigationUpdate firmware to version 2.05B11 or later to patch the vulnerability. If updates are unavailable, restrict administrative access to trusted networks only and consider replacing 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:< 2.05b11

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
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/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 the device model
    Access the router web interface or check the device label to confirm the model is TRENDnet TEW-827DRU
    Affected if The device is a TEW-827DRU router
  2. Check the installed firmware version
    Log into the router web interface and navigate to Status or System section to view the firmware version, or use the router's administration page to retrieve the firmware build number
    Affected if The firmware version is any build before 2.05b11 (for example, 2.05b10 or earlier)
  3. Verify the Add Gaming Rule feature exists
    In the router web interface, look for a Gaming, Firewall, or Port Forwarding section and confirm an Add Gaming Rule or similar option is present
    Affected if The Gaming Rule configuration feature is accessible in the web interface
  4. Check for unauthorized gaming rules
    In the Gaming or Firewall settings, examine any existing gaming rules and inspect the IP Address fields for suspicious or unexpected values
    Affected if There are gaming rules with unexpected or malformed IP address entries that may indicate command injection

You are affected if you have a TRENDnet TEW-827DRU router running firmware version before 2.05b11 and the gaming rule feature is accessible in the interface.

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
Upgrade available Upgrade to 2.05b11 or later
Fixed in 2.05b11
Interim mitigation

Update firmware to version 2.05B11 or later to patch the vulnerability. If updates are unavailable, restrict administrative access to trusted networks only and consider replacing the end-of-life device.

Fix this in Tew 827dru Firmware Scoped from the published advisory
  • Consultation3.0 h
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,770
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2019-13152 — 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-2019-13152 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