Tenda A21 vulnerabilities

• tenda a21, a21 firmware +1 more Tenda A21 SetOnlineDevName set_device_name stack-based overflow CVE-2026-2886 8.7 HighFebruary 21, 2026
• tenda a21, a21 firmware +1 more Tenda A21 fast_setting_wifi_set form_fast_setting_wifi_set stack-based overflow CVE-2026-2874 8.7 HighFebruary 21, 2026
• tenda a21, a21 firmware +1 more Tenda A21 openSchedWifi setSchedWifi stack-based overflow CVE-2026-2873 8.7 HighFebruary 21, 2026
• tenda a21, a21 firmware +1 more Tenda A21 MAC Filtering Configuration Endpoint setBlackRule set_device_name stack-based overflow CVE-2026-2872 8.7 HighFebruary 21, 2026
• tenda a21, a21 firmware +1 more Tenda A21 SetIpMacBind fromSetIpMacBind stack-based overflow CVE-2026-2871 8.7 HighFebruary 21, 2026
• tenda a21, a21 firmware +1 more Tenda A21 formSetQosBand set_qosMib_list stack-based overflow CVE-2026-2870 8.7 HighFebruary 21, 2026