CVE-2026-19586

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.

• tp-link er7212pc firmware (< 2.4.3) • tp-link er605 firmware (< 2.4.4) • tp-link er605w firmware (< 2.0.4) • tp-link er7206 firmware (< 2.3.5) • tp-link er7406 firmware (< 1.3.4) • tp-link er707-m2 firmware (< 1.4.4) • tp-link er7412-m2 firmware (< 1.2.0) • tp-link er8411 firmware (< 1.4.1) • tp-link er706w firmware (< 1.2.11) • tp-link er706w-4g firmware (< 1.2.6) • tp-link er706w-4g firmware (< 2.1.11) • tp-link er706wp-4g firmware (< 1.1.11) • tp-link er703wp-4g-outdoor firmware (< 1.1.7) • tp-link er603wp-4g-outdoor firmware (< 1.0.2) • tp-link er701-5g-outdoor firmware (< 1.0.3) • tp-link dr3220v-4g firmware (< 1.2.0) • tp-link dr3650v firmware (< 1.2.0) • tp-link dr3650v-4g firmware (< 1.2.0) • tp-link dr3150 firmware (< 1.0.1)