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CVE-2026-19683

Unencrypted Credential Transmission in Omada Gateway Dynamic DNS Authentication in Omada Gateways

A vulnerability exists in the Dynamic DNS (DDNS) functionality of TP-Link Omada Gateways. During communication with a third-party DDNS service, authentication credentials are transmitted over an unencrypted channel. An attacker who can observe or manipulate traffic between an affected device and the DDNS service may obtain sensitive authentication information or interfere with DDNS update operations. Exploitation requires DDNS to be configured, communication with an external DDNS service, and attacker visibility or control of the relevant network path.  Successful exploitation may result in disclosure of DDNS account credentials, unauthorized access to DDNS management functionality, or modification of DNS records associated with the affected deployment.

CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed
Vendors
Tp-link Tp-link Systems Inc
Products
Dr3150 Dr3150 Firmware Dr3150 V1 and 52 more
CVE-2026-9033

Unauthenticated Captive Portal Session Termination and Forced Logout in Omada Gateways

An unauthenticated attacker with network access to the captive portal service of an affected device can terminate active captive portal sessions, including forcing logout of specific users or clearing all active sessions. Affected users must re-authenticate to regain access.  Successful exploitation may allow termination of individual or all active captive portal sessions, causing temporary service disruption and requiring users to re-authenticate.

CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed
Vendors
Tp-link
Products
Dr3150 Dr3150 Firmware Dr3150 V1 and 52 more
CVE-2026-19586

Pre-Authentication OS Command Injection in Omada Gateways on OpenVPN Server in Omada Gateways

A pre-authentication OS command injection vulnerability has been identified in Omada gateways configured to operate as an OpenVPN Server due to insufficient validation of client-supplied data during OpenVPN connection establishment. An unauthenticated remote attacker may provide specially crafted input influencing backend command execution logic before authentication completes. Exploitation requires the OpenVPN Server feature to be enabled, VPN service reachable by the attacker and attacker to be able to initiate an OpenVPN connection attempt.  Successful exploitation may allow arbitrary command execution, potentially leading to full compromise of the affected device.

CVSS 4.0 · 9.3 Critical EPSS 5.8% KEV · Not listed
Vendors
Tp-link Tp-link Systems Inc
Products
Dr3150 Dr3150 Firmware Dr3150 V1 and 50 more
CVE-2025-9290

Authentication Weakness on Omada Controllers, Gateways and Access Points

An authentication weakness was identified in Omada Controllers, Gateways and Access Points, controller-device adoption due to improper handling of random values. Exploitation requires advanced network positioning and allows an attacker to intercept adoption traffic and forge valid authentication through offline precomputation, potentially exposing sensitive information and compromising confidentiality.

CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed
Vendors
Tp-link
Products
Beam Bridge 5 Ur Beam Bridge 5 Ur Firmware Dr3220v-4g and 111 more