A vulnerability in the openSSL component (CVE-2022-0778, [0]) could allow an attacker to create a denial of service condition by providing specially crafted elliptic curve certificates to products that use a vulnerable version of openSSL.
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.
[0] https://www.openssl.org/news/secadv/20220315.txt

https://cert-portal.siemens.com/productcert/html/ssa-712929.html