Palo Alto Networks has published [1] information on vulnerabilities in PAN-OS. This advisory lists the related Siemens Industrial products affected by these vulnerabilities.
Siemens is preparing fix versions and recommends countermeasures for products where fixes are not, or not yet available.
[1] https://security.paloaltonetworks.com/

https://cert-portal.siemens.com/productcert/html/ssa-354569.html