Understanding and Defending Against CVE-2026-71946: Command Injection in D-Link DWR-M961 Devices
CVE-2026-71946 is a critical command injection vulnerability in D-Link DWR-M961 devices with hardware version C1 and firmware version before 1.1.5_C1_202607071108. This vulnerability allows a remote attacker to inject arbitrary malicious commands into the host field of the /boafrm/formPingDiagnosticRun interface, resulting in command execution with root privileges. The vulnerability has a CVSS score of 9.8, indicating a high severity. This educational analysis aims to provide a deep understanding of the threat and defensive thinking to protect against such vulnerabilities.