TP-Link Archer AX21
AX1800 - TP-Link AX1800 Dual Band Wi-Fi 6 Router.
Specifications
- Wi-Fi
- Wi-Fi 6 802.11ax
- Bands
- 2.4GHz + 5GHz
- Ports
- 4x Gigabit
- MU-MIMO
- 4x4
Potential Threats
6 Known CVEs
Default IP
192.168.0.1
Default admin panel address for TP-Link Archer AX21
Default Credentials — TP-Link Archer AX21
| Username | Password | Access Type | Protocol | Port | Notes |
|---|---|---|---|---|---|
| web | HTTP | 80 |
Known CVE Vulnerabilities (6)
TP-Link AX1800 hotplugd Firewall Rule Race Condition Vulnerability. This vulnerability allows remote attackers to gain access to LAN-side services on...
TP-Link AX1800 Firmware Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers...
TP-Link Archer AX21 tmpServer Command 0x422 Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacen...
TP-Link Archer AX21 tdpServer Logging Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent atta...
TP-Link Archer AX21(US)_V3_1.1.4 Build 20230219 and AX21(US)_V3.6_1.1.4 Build 20230219 are vulnerable to Buffer Overflow.
TP-Link Archer AX21 (AX1800) firmware versions before 1.1.4 Build 20230219 contained a command injection vulnerability in the country form of the /cgi...
FAQ
The most common default credentials for TP-Link Archer AX21 are listed in the table above. Always change these immediately after setup.
The default username for TP-Link Archer AX21 is typically "admin". The full list of default credentials including username, password, access type and port is shown in the table on this page.
Log in to the admin panel using the default credentials listed above. Navigate to Administration → Password or System → Account settings. Enter the current password and set a new strong password. Save the changes.
Locate the Reset button (usually a small pinhole on the back/bottom of the device). Hold it for 10-30 seconds while powered on until the LEDs flash. The device will reboot with default settings.
No. Default credentials are publicly known and frequently exploited by automated scanners. Change the admin password immediately after first login.
The default admin login address for TP-Link Archer AX21 is shown in the "Default IP" field above. Most routers use 192.168.1.1 or 192.168.0.1. Open a browser on a device connected to the router and navigate to that IP.
Log in to the router admin panel at the default IP address. Go to Wireless or Wi-Fi settings. Find the WPA2/WPA3 passphrase field and update it. Save and reconnect your devices.
Change the default admin password and Wi-Fi password immediately. Disable WPS (Wi-Fi Protected Setup) — it is vulnerable to brute-force attacks. Enable WPA3 encryption if supported. Turn off remote management unless needed. Keep firmware updated.
TP-Link Archer AX21 has 6 known CVE vulnerabilities documented in our database. The full list with severity ratings is shown on this page. Apply the latest firmware update from the manufacturer to address known issues.
