CVE-2023-46285

Summary

CVE-2023-46285 is a newly identified vulnerability that affects multiple Siemens applications, including Opcenter Quality (all versions < V2312), SIMATIC PCS neo (all versions < V4.1), SINEC NMS (all versions < V2.0 SP1), and various versions of the Totally Integrated Automation Portal (TIA Portal) V14, V15.1, V16, V17, and V18 (all versions before V18 Update 3). This vulnerability is caused by an improper input validation mechanism. An attacker can exploit this weakness by sending a specially crafted message to port 4004/tcp, leading to a Denial-of-Service (DoS) state. After the service crashes, it is automatically restarted due to a watchdog mechanism.

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