A command injection vulnerability exists in the ToToLink A720R Router firmware…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-77.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-60683
- 2026-10-03 Alias added: GHSA-q788-r29g-853f
References
More TOTOLINK A720r Firmware vulnerabilities
- TI-2025-08527 TOTOLINK A720R cstecgi.cgi setParentalRules buffer overflow CVSS 4.0HIGH 8.7
- TI-2025-37755 A command injection vulnerability exists in the ToToLink A720R Router firmware… CVSS 3.1MEDIUM 6.5
- TI-2025-03802 TOTOLINK A720R cstecgi.cgi information disclosure CVSS 4.0MEDIUM 6.9
- TI-2025-03801 TOTOLINK A720R Config cstecgi.cgi information disclosure CVSS 4.0MEDIUM 6.9
- TI-2025-03800 TOTOLINK A720R Log cstecgi.cgi access control CVSS 4.0MEDIUM 6.9
- TI-2025-03799 TOTOLINK A720R cstecgi.cgi missing authentication CVSS 4.0MEDIUM 6.9
Sources
- CVE-2025-60683 · CVE Program
- CVE-2025-60683 · NVD
- FIRST EPSS
- GHSA-q788-r29g-853f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences