CVE-2020-12526
Published: May 13, 2021
Modified: Sep 16, 2024
CVSS v3.1
5.3
Description
TwinCAT OPC UA Server in versions up to 2.3.0.12 and IPC Diagnostics UA Server in versions up to 3.1.0.1 from Beckhoff Automation GmbH & Co. KG are vulnerable to denial of service attacks. The attacker needs to send several specifically crafted requests to the running OPC UA server. After some of these requests the OPC UA server is no longer responsive to any client. This is without effect to the real-time functionality of IPCs.
| Vendor | Product | Versions |
|---|---|---|
Beckhoff | TwinCAT OPC UA Server | affected unspecified - <= 2.3.0.12 |
Beckhoff | IPC Diagnostics UA Server | affected unspecified - <= 3.1.0.1 |
Beckhoff | TF6100 | affected unspecified - <= 3.3.18 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now