Fortinet has published information on vulnerabilities in FORTIOS. This advisory lists the related Siemens Industrial products.
Siemens is preparing updates and recommends specific countermeasures for products where updates are not, or not yet available. Siemens recommends to consult and implement the workarounds provided in Fortinet’s upstream security notifications.

https://cert-portal.siemens.com/productcert/html/ssa-366067.html