RCE in Totolink A720r

CVE-2025-60683

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.010 (59.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-60683?
CVE-2025-60683 is a medium-severity vulnerability in Totolink A720r, classified under Command Injection. CVSS score: 6.5/10. Published 2025-11-13.
How severe is CVE-2025-60683?
Medium severity. CVSS v3 base score is 6.5 out of 10.