CVE-2026-19586

CRITICAL CVSS 4.0: 9.3 EPSS 5.04%
Updated Aug 21, 2026
Openvpn
Parameter Value
CVSS 9.3 (CRITICAL)
Type CWE-78 (OS Command Injection)
Vendor Openvpn
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Weakness Type (CWE)