This indicates an attack attempt to exploit a Command Execution vulnerability in Huawei HG532 Router.
The vulnerability is due to improper validation of a configuration file. A remote attacker may be able to exploit this to execute arbitrary command within the context of the process, via a crafted HTTP request.
System Compromise: Remote attackers can execute arbitrary command execution under the security context of the router.
We currently are unaware of any vendor supplied patches for this issue.