Key Information Vulnerability Overview Vendor: Belkin Product: F9K1122 Version: 1.00.33 Type: Stack Overflow Author: Jiaqian Peng Organization: Institute of Information Engineering, Chinese Academy of Sciences (IIE, CAS) Vulnerability Description A stack overflow vulnerability was discovered in the recently released firmware of Belkin routers, allowing remote attackers to crash the server. Stack Overflow Details In the binary, the function directly receives the parameter from the attacker. If this data is excessively long, it triggers a stack overflow, enabling the attacker to control the and execute arbitrary code. POC (Proof of Concept) By setting to a long string of , the router crashes. Example: Result The target router crashes and is unable to provide service correctly and continuously.