This indicates an attempt to exploit a buffer-overflow vulnerability in IBM Tivoli Provisioning Manager for OS Deployment.
The vulnerability is caused by a boundary error in rembo.exe when the vulnerable software handles an HTTP request with an overly long URI. A remote attacker may send a crafted HTTP request to execute arbitrary code.
The vulnerabilities are reported in version 126.96.36.199. Other versions may also be affected.
System Compromise: Remote attackers can gain control of vulnerable systems.
Refer to the vendor's website for the suggested workaround: