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 updates and recommends specific countermeasures for products where updates are not, or not yet available. Customers are advised to consult and implement the workarounds provided in Palo Alto Networks’ upstream security notifications.
[1] https://security.paloaltonetworks.com/?version=10.2.2&product=PAN-OS
https://cert-portal.siemens.com/productcert/html/ssa-822518.html