The SNAP Lite component in certain SISCO MMS-EASE and AX-S4 ICCP products allows remote attackers to cause a denial of service (CPU consumption) via a crafted packet.
https://thehackernews.com/2024/10/researchers-uncover-major-security.html
https://www.sisconet.com/wp-content/uploads/2016/04/SecNote_CVE-2015-6574-Portcullis-20160426.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-223771.pdf