OS Command Injection Vulnerability in Omada Gateways by TP-Link
CVE-2026-19586

9.3CRITICAL

Key Information:

Vendor
CVE Published:
20 August 2026

What is CVE-2026-19586?

A pre-authentication OS command injection vulnerability has been discovered in Omada gateways configured to function as OpenVPN Servers. This vulnerability arises from inadequate validation of client-supplied data during the connection establishment of OpenVPN. An unauthenticated remote attacker can craft specific input that manipulates backend command execution logic before authentication is completed. For exploitation to succeed, the OpenVPN Server feature must be enabled, the VPN service must be accessible by the attacker, and the attacker must be able to initiate an OpenVPN connection attempt. Successful exploitation may lead to arbitrary command execution, potentially resulting in the complete compromise of the affected device.

Affected Version(s)

DR3150 v1 0 < 1.0.1 Build 20260722 Rel.16854

DR3220v-4G v1 0 < 1.2.0 Build 20260630 Rel.82652

DR3650v v1 0 < 1.2.0 Build 20260630 Rel.83311

References

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Matt Graham (mattg.systems)
.