Port 22

13 New Flaws in Siemens Nucleus TCP/IP Stack Impact Safety-Critical Equipment

As many as 13 security vulnerabilities have been discovered in the Nucleus TCP/IP stack, a software library now maintained by Siemens and used in three billion operational technology and IoT devices that could allow for remote code execution, denial-of-service (DoS), and information leak. Collectively called “NUCLEUS:13,” successful attacks abusing the flaws can “result in devices going offline