cve/2023/CVE-2023-3825.md

### [CVE-2023-3825](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3825)
![](https://img.shields.io/static/v1?label=Product&message=KEPServerEX&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=6.0%3C%3D%206.14.263%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-400%20Uncontrolled%20Resource%20Consumption&color=brighgreen)

### Description

PTC’s KEPServerEX Versions 6.0 to 6.14.263 are vulnerable to being made to read a recursively defined object that leads to uncontrolled resource consumption. KEPServerEX uses OPC UA, a protocol which defines various object types that can be nested to create complex arrays. It does not implement a check to see if such an object is recursively defined, so an attack could send a maliciously created message that the decoder would try to decode until the stack overflowed and the device crashed.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/claroty/opcua-exploit-framework