CVE-2025-60683
MediumCVSS 6.5Exploitation Probability (EPSS)
Elevated risk56th percentile - higher than 56% of all known CVEs
Summary
A command injection vulnerability exists in the ToToLink A720R router firmware V4.1.5cu.614_B20230630 within the sysconf binary. The sub_40BFA4 function handling network interface reinitialization from '/var/system/linux_vlan_reinit' only partially validates input and concatenates it into shell commands executed via system() without escaping, allowing arbitrary command execution.
Risk Assessment
An attacker with write access to the device can gain full control over the router, modify network settings, install malware, or disrupt device operation.
Recommendation
Update the router firmware to the latest patched version immediately. In the meantime, restrict write access to '/var/system/linux_vlan_reinit' to trusted processes only.
Original NVD description (English source)
A command injection vulnerability exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the sysconf binary, specifically in the sub_40BFA4 function that handles network interface reinitialization from '/var/system/linux_vlan_reinit'. Input is only partially validated by checking the prefix of interface names, and is concatenated into shell commands executed via system() without escaping. An attacker with write access to this file can execute arbitrary commands on the device.