This indicates an attack attempt to exploit a Denial of Service vulnerability in SAP Netweaver.
The vulnerability is due to a lack input validation when handling crafted requests. A remote attack may be able to exploit this to cause a denial of service condition on the affected system, via a crafted request to the vulnerable application.
SAP NetWeaver 7.40 (disp+work.exe version 7400.12.21.30308)
Denial of Service: Remote attackers can crash vulnerable systems.
Apply the most recent upgrade or patch from the vendor.