Tenda AC19
Security Analysis Report

Tenda AC19

Last reviewed: March 2026 · ismyroutersafe.com

Tenda Made in China
Permanent URL - bookmark it or forward it
F
HIGH RISK
The Verdict

This router has documented security problems. Every device on this network — your work laptop, banking app, Ring camera, smart lock — is running at higher risk than it should be.

An F is not a warning — it’s a finding that the router has been independently flagged for security or supply-chain concerns serious enough to warrant action.

  • Your home network is more exposed than it should be

    Your home network is more exposed than it should be. Your work laptop, banking sessions, security cameras, and smart home devices all pass through this router — a flaw here gives an attacker leverage over all of them at once.

    Show technical detail

    Serious flaws were ignored or left unpatched: Multiple serious vulnerability reports were filed. Tenda's response was delayed or absent.

  • Tenda is legally required to share your network data with the Chinese government if asked

    The manufacturer is legally required to share your network data with the Chinese government if asked. This isn't theoretical — it's a legal obligation that can't be refused.

    Show technical detail

    The company behind this router is legally required to cooperate with Chinese intelligence: Same ownership concerns as all Chinese-manufactured networking gear.

Everything on this network shares the exposure
💻 Work laptop & remote access 🏦 Online banking & passwords 📷 Security cameras & smart locks 👧 Kids' devices & school logins 📱 Every phone & tablet at home 🔊 Smart speakers & streaming

An A-rated alternative is shown below.

FCC & Ban Risk
4 /100 F
Supply chain · FCC status · CVEs · Patch support
Security Capabilities
0 /100 F
Zero-Trust · VPN · Segmentation · Monitoring
FCC & Ban Risk measures supply-chain exposure, government flags, and CVE history. Security Capabilities measures what the router can actually do to protect your network. How we score →
390K US homes use this router How we estimated this ↗
Device context
Manufacturer Chinese-owned — Shenzhen Tenda Technology Co., Ltd., China
Country of origin Built in China
US gov status Authorized — New models blocked ↗
Security patches Minimal
📋 What to do. Start here.
1
Replace this router
2
If keeping: update firmware, change all passwords, disable UPnP
3
We built Rio to score 8/8 on this framework. It’s the only router we track that does — and we’d tell you if another one did
We make Rio. We rate it A. Here’s why.
Rio scores 8/8. This router doesn’t come close — and we’d tell you if it did.
✓No Chinese jurisdiction, no investigation, zero CVEs. We built Rio to score 8/8. It’s the only router we track that does.
✓Every device protected automatically — Ring camera, smart lock, work laptop, baby monitor. No app required.
✓Trusted by PCMatic and Sony VAIO. Purpose-built for security from day one.
✓Set up in under 10 minutes. Same cables, same internet provider — no tech skills needed.
Free US shipping · 30-day money-back · Any internet provider
Rio Router
🔒 Security capabilities comparison
Here's how your router compares to Rio across the 8 dimensions we built our framework around. (Yes, we made Rio.)
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
Real-time detection of suspicious device behavior, unusual traffic patterns, and known attack signatures on your network
Not available
Available
Rio scores 8/8 — we built it to hit every dimension on this framework. Know a router that does? Tell us and we’ll add it. Get Rio →
See all Tenda models: Tenda brand overview →
You’ve seen the comparison. Rio covers every gap above.
Free US shipping · 30-day money-back · Works with any internet provider
Replace it with Rio ↗
Want to also check your current network in real time? BETA

The report above is based on your router’s model record. This optional check runs live probes against your current network to detect DNS hijacking and admin interface exposure — things static analysis can’t catch.

🔍
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
Critical unpatched vulnerabilities, no US security team.
See currently authorized alternatives →
Replace it with Rio ↗
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.
See all Tenda CVEs: NIST NVD search →
Other Tenda models
AC23FNo active US security team
See all Tenda models: Tenda brand overview →
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 →
🦾 This router has documented security risks. Rio is the only A-rated replacement — free shipping, 30-day guarantee.