D-Link Vulnerability Vendor: D-Link Product: DIR619L Version: 2.06B01 Type: Stack Overflow Author: Jiaqian Peng Mail: pengjiaqian@lie.ac.cn Institution: Institute of Information Engineering, Chinese Academy of Sciences (III, CAS) Vulnerability Description A stack overflow vulnerability was discovered in the D-Link router running firmware version 2.06B01, enabling remote attackers to crash the device. Stack Overflow In the binary: The parameter is directly supplied by the attacker. If the input data exceeds a safe length, it triggers a stack overflow. The input is not validated and is directly copied into a local stack variable, overwriting the function's return address, leading to a buffer overflow. Relevant code snippet: PoC Set to a long string of characters (e.g., ), which will cause the router to crash: Result The target router crashes and is unable to provide services reliably or continuously.