CVE - CVE-2020-12526

CVE-ID
CVE-2020-12526	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://cert.vde.com/en-us/advisories/vde-2020-051 URL:https://cert.vde.com/en-us/advisories/vde-2020-051 CONFIRM:https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2021-001.pdf URL:https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2021-001.pdf
Assigning CNA
CERT@VDE
Date Record Created
20200430	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20200430)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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