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Legacy Product: TEW-821DAP (v1.xR) Possible Vulnerabilities

TRENDnet has received report of possible vulnerabilities for TEW-821DAP (v1.xR) Wireless Access Point. The vulnerabilities only apply to hardware versions v1.xR with firmware version v1.12B01.

Firmware authentication vulnerability in firmware update; (CVE-2026-7606)
Buffer overflow in firmware update process; (CVE-2026-7607)
OS command injection (CVE-2026-7608)
Command injection in firmware update process; (CVE-2026-7609)
Firmware download vulnerability; (CVE-2026-7610)
Firmware integrity vulnerability in firmware update process (CVE-2026-7611)

The product has reached End of Life (EOL) and End of Support. TRENDnet can no longer provide updates or technical assistance for it. We strongly recommend that customers retire the product to protect any devices connected to them.

If you cannot replace the product immediately, please take the following steps to reduce the risk of a cyberattack:

  • Disable "Remote Management" in the devicesettings (Note: This should be disabled by default).
  • Close the configuration page immediately afterchanging and saving settings. Do not browse other websites while theconfiguration page is open.
  • Change your password periodically. Use a strong password (minimum 12 characters) including numbers, special characters, and both uppercase and lowercase letters.
  • Update your Wi-Fi password regularly using a strong, unique passphrase.
  • Restrict Wi-Fi access only to people you trust.
  • Power off the device when it is not in use.
  • Restart (power cycle) the device every few days to clear potential temporary exploits.

For Technical Support, please visit https://www.trendnet.com/support/