The SAP Message Server HTTP daemon in SAP KERNEL 7.21-7.49 allows remote attackers to cause a denial of service (memory consumption and process crash) via multiple msgserver/group?group= requests with a crafted size of the group parameter, aka SAP Security Note 2358972.
https://erpscan.io/advisories/erpscan-16-038-sap-message-server-http-remote-dos/