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CVE-2021-34594

Beckhoff: Relative path traversal vulnerability through TwinCAT OPC UA Server

TwinCAT OPC UA Server in TF6100 and TS6100 in product versions before 4.3.48.0 or with TcOpcUaServer versions below 3.2.0.194 are prone to a relative path traversal that allow administrators to create or delete any files on the system.

CVSS 3.1 · 6.5 Medium EPSS 1.1% KEV · Not listed
Vendors
Beckhoff
Products
Tf6100 Tf6100 Firmware Ts6100 and 1 more
CVE-2020-12526

BECKHOFF: DoS-Vulnerability for TwinCAT OPC UA Server and IPC Diagnostics UA Server

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.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Beckhoff
Products
Ipc Diagnostics Ua Server Tf6100 Twincat Opc Ua Server