This indicates an attack attempt against multiple Denial of Service vulnerabilities in GSM SIM Utility.
The vulnerability is caused by an error when the vulnerable software handles a malformed "sms" file. It allows a remote attacker to execute arbitrary code via sending a crafted SMS file.
SIM-MAX GSM SIM Utility 5.15
System Compromise: Remote attackers can gain control of vulnerable systems.
Currently we are not aware of any vendor supplied patch for this issue.