Tenda AC19
Security Analysis Report

Tenda AC19

Last reviewed: March 2026 · ismyroutersafe.com

Tenda Made in China
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F
HIGH RISK
Multiple critical vulnerabilities and no meaningful US security support. Same concerns as the AC23.
  • Multiple critical CVEs - inadequate response: Multiple serious vulnerability reports were filed. Tenda's response was delayed or absent.
  • Chinese state jurisdiction: Same ownership concerns as all Chinese-manufactured networking gear.
FCC & Ban Risk
4 /100 F
Supply chain · FCC status · CVEs · Patch support
Security Capabilities
0 /100 F
Zero-Trust · VPN · Segmentation · Monitoring
Est. 390K US homes use this router model How we estimated this ↗
🏭  Manufacturer
Chinese-owned
Shenzhen Tenda Technology Co., Ltd., China
Manufactured in: China
🏛️  FCC Status
Authorized
🛡️  Patch Support
Minimal
Whether security vulnerabilities are actively being patched
⚠️  Key Finding
high
Multiple critical CVEs - inadequate response
Live Network Check BETA

The report above reflects your router’s model record. This check runs live probes against your current network to detect issues static analysis cannot - DNS hijacking and admin interface exposure.

🔍
DNS HIJACK CHECK
Detects if your DNS has been silently rerouted to intercept your traffic
🌐
WAN EXPOSURE
Tests if your router admin panel is reachable from outside your home
No data stored · Runs entirely in your browser · ~5 seconds
🔒 Security capabilities comparison
We benchmark your router against Rio Router across 8 dimensions so you can see exactly what gaps exist - and what a fully-covered setup looks like.
TENDA
your router
Rio Router
full standard
Zero-Trust Device Admission
Every new device is blocked by default - admin must approve it once, even if it has the right password
Not available
Available
Network Segmentation (VLANs)
Devices on your network are isolated from each other, so a hacked smart TV can't reach your laptop
Not available
Available
Router-Level VPN for All Devices
All traffic - including smart devices that can't run VPN apps - is encrypted before leaving your home
Not available
Available
Domain Allowlisting
Block everything except approved sites; more effective than trying to blacklist billions of harmful URLs
Not available
Available
Granular Password Control
Separate passwords per network zone - changing one doesn't affect others
Not available
Available
Guest Auto-Expiry
Guest devices are automatically removed when they leave; neighbors can't reconnect without re-approval
Not available
Available
Clean Supply Chain
Manufactured outside Chinese legal jurisdiction - not subject to China's National Intelligence Law
Not available
Available
Active Threat Monitoring
DNS filtering, firewall, activity logs, and ongoing security patch support
Not available
Available
We use Rio Router as the benchmark because it’s the only consumer router built to score 8/8 on this framework - it shows you what a fully-covered setup looks like, not just what’s typical. See Rio →
📋 What you should do
1
Replace this router
2
If keeping: update firmware, change all passwords, disable UPnP
Critical unpatched vulnerabilities, no US security team.
Replacement Guide →
How this was scored · verified March 2026: This rating combines FCC authorization status, manufacturer legal jurisdiction, CVEs from NIST NVD, active patch support status, and CISA advisory mentions. See full methodology →
Reference Data
Known CVEs - Tenda brand history
From the NIST National Vulnerability Database. Your specific model may or may not be affected.
CVE-2022-35543 Critical · CVSS 9.8 AX1806
Unauthenticated RCE via stack overflow in cookie parameter. No login required.
CVE-2022-40849 High · CVSS 7.5 AC1200
Arbitrary file read via path traversal. Exposes config and credentials to unauthenticated attackers.
Other Tenda models
AC23 F No active US security team
Sources & evidence
All findings trace to publicly verifiable primary sources - US government databases, official FCC filings, and NIST CVE records. No proprietary or anonymous sources are used.
  1. CVE-2019-17621 and others · NVD ↗
  2. China National Intelligence Law · 2017 ↗
  3. FCC Equipment Authorization Database ↗
  4. FCC Covered List · National Security Designation ↗
Full data source documentation: Scoring Methodology & Citations →
A free public tool made with 🦾 by Rio