CVE-2026-71961
HighCVSS 8.8Summary
Cudy WR3000 2.0 running firmware before 2.5.24 contains an OS command injection vulnerability that allows authenticated attackers to execute arbitrary OS commands with root privileges by sending unsanitized input through the mesh MQTT command interface. The sync_command binary forwards unsanitized input directly to a shell execution sink in command.lua, enabling attackers with access to the MQTT broker to exploit the default-enabled command execution path to achieve full root-level system compromise.
Risk Assessment
The risk includes full device compromise by an attacker, potentially leading to confidentiality, integrity, and availability breaches, and use of the device as an entry point into the network.
Recommendation
It is recommended to upgrade the Cudy WR3000 firmware to version 2.5.24 or later and restrict access to the MQTT broker to trusted sources only.
Original NVD description (English source)
Cudy WR3000 2.0 running firmware before 2.5.24 contains an OS command injection vulnerability that allows authenticated attackers to execute arbitrary OS commands with root privileges by sending unsanitized input through the mesh MQTT command interface. The sync_command binary forwards unsanitized input directly to a shell execution sink in command.lua, enabling attackers with access to the MQTT broker to exploit the default-enabled command execution path to achieve full root-level system compromise.