Several industrial products contain an out of bounds read vulnerability that could allow an attacker to cause a Blue Screen of Death (BSOD) crash of the underlying Windows kernel, leading to denial of service condition.
Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends countermeasures for products where fixes are not, or not yet available.

https://cert-portal.siemens.com/productcert/html/ssa-962515.html