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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.010 (61.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Totolink A720r
- Totolink A720r Firmware — versions 4.1.5cu.614_b20230630
Weakness classification (CWE)
References
- totolink.com (Broken Link)
- www.totolink.net/ (Product)
- github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-A720R/CVE-20… (Exploit, Third Party Advisory)
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.