Affected devices improperly handle large amounts of specially crafted UDP packets. This could allow an unauthenticated remote attacker to trigger a denial of service condition.
https://cert-portal.siemens.com/productcert/html/ssa-473245.html
https://github.com/Live-Hack-CVE/CVE-2019-10936
https://cert-portal.siemens.com/productcert/pdf/ssa-473245.pdf