TP-Link Omada Gateway OpenVPN Server Command Injection
CVE-2026-19586 Published on August 20, 2026

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.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-19586 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.

Attack Vector:

NETWORK

Attack Complexity:

LOW

Privileges Required:

NONE

User Interaction:

NONE

Weakness Type

What is a Shell injection Vulnerability?

The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

CVE-2026-19586 has been classified to as a Shell injection vulnerability or weakness.

Affected Versions

TP-Link Systems Inc. ER7212PC v2:

Before 2.4.3 Build 20260722 Rel.40250 is affected.

TP-Link Systems Inc. ER605 v2:

Before 2.4.4 Build 20260630 Rel.14398 is affected.

TP-Link Systems Inc. ER7206 v2:

Before 2.3.5 Build 20260625 Rel.43136 is affected.

TP-Link Systems Inc ER7406 v1:

Before 1.3.4 Build 20260625 Rel.43136 is affected.

TP-Link Systems Inc. ER707-M2 v1:

Before 1.4.4 Build 20260625 Rel.43063 is affected.

TP-Link Systems Inc ER7412-M2 v1:

Before 1.2.0 Build 20260630 Rel.82947 is affected.

TP-Link Systems Inc. ER8411 v1:

Before 1.4.1 Build 20260708 Rel.64832 is affected.

TP-Link Systems Inc. ER706W v1:

Before 1.2.11 Build 20260723 Rel.41567 is affected.

TP-Link Systems Inc. v1:

Before 1.2.6 Build 20260723 Rel.41321 is affected.

TP-Link Systems Inc. ER706W-4G v2:

Before 2.1.11 Build 20260723 Rel.41624 is affected.

TP-Link Systems Inc. ER706WP-4G v1:

Before 1.1.11 Build 20260723 Rel.41624 is affected.

TP-Link Systems Inc. ER703WP-4G-Outdoor v1:

Before 1.1.7 Build 20260723 Rel.41712 is affected.

TP-Link Systems Inc. DR3220v-4G v1:

Before 1.2.0 Build 20260630 Rel.82652 is affected.

TP-Link Systems Inc. DR3650v v1:

Before 1.2.0 Build 20260630 Rel.83311 is affected.

TP-Link Systems Inc. DR3650v-4G v1:

Before 1.2.0 Build 20260630 Rel.83347 is affected.

TP-Link Systems Inc. ER603WP-4G-Outdoor v1:

Before 1.0.2 Build 20260723 Rel.43271 is affected.

TP-Link Systems Inc. DR3150 v1:

Before 1.0.1 Build 20260722 Rel.16854 is affected.

TP-Link Systems Inc. ER701-5G-Outdoor v1:

Before 1.0.3 Build 20260723 Rel.40931 is affected.

TP-Link Systems Inc. ER605W v2:

Before 2.0.4 Build 20260723 Rel.43763 is affected.

TP-Link Omada Gateway OpenVPN Server Command InjectionCVE-2026-19586 Published on August 20, 2026

Vulnerability Analysis

Weakness Type

What is a Shell injection Vulnerability?

Affected Versions

TP-Link Omada Gateway OpenVPN Server Command Injection
CVE-2026-19586 Published on August 20, 2026