# CVE-2025-60687: ToToLink LR1200GB command injection in cstecgi.cgi imei parameter

Source: https://junglewise.ai/threats/cve-2025-60687-totolink-lr1200gb-command-injection-in-cstecgi-cgi-imei-parameter  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-11-13. Updated: 2026-07-05  
License: CC BY 4.0 with a link back

CVE-2025-60687 · Severity: medium · CVSS 6.5 · Published 2025-11-13

A security vulnerability exists in the ToToLink LR1200GB router, a device used to provide wireless internet connectivity. An attacker can send a specially crafted web request to the router to take control of the device without needing a password. This could allow an unauthorized user to disrupt internet service or potentially access internal network traffic.

Technologies: [TOTOLINK Lr1200gb](https://junglewise.ai/threats/technologies/lr1200gb), [TOTOLINK Lr1200gb Firmware](https://junglewise.ai/threats/technologies/lr1200gb-firmware). Vendors: [TOTOLINK](https://junglewise.ai/threats/vendors/totolink).

## Quick answers

**Is CVE-2025-60687 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-60687 being exploited in the wild.

**How severe is CVE-2025-60687?** Medium severity, with a CVSS score of 6.5, published 13 November 2025.

**Which products and versions are affected?** TOTOLINK LR1200GB Router V9.1.0u.6619_B20230130.

**Is there a fix for CVE-2025-60687?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-60687 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2025-60687?** Check whether you run TOTOLINK Lr1200gb, TOTOLINK LR1200GB Router or TOTOLINK Lr1200gb Firmware at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An unauthenticated command injection vulnerability exists in the cstecgi.cgi binary (specifically the sub_41EC68 function) of the ToToLink LR1200GB router firmware V9.1.0u.6619_B20230130. The application retrieves the 'imei' parameter via websGetVar and performs a length check to ensure it is exactly 15 characters, but fails to sanitize the input for shell metacharacters. The unsanitized input is then passed to sprintf() to construct a system command ('cli_atc at+EGMR=1,7...') which is executed via system(). An attacker can exploit this by providing a 15-character string containing command separators (e.g., semicolons) to achieve remote code execution.

## Affected products

- ToToLink LR1200GB Router V9.1.0u.6619_B20230130

## Timeline

- 2025-11-13: advisory: NVD published date

## References

- [https://github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-LR1200GB/CVE-2025-60687.md](https://github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-LR1200GB/CVE-2025-60687.md)
- [https://www.totolink.net/](https://www.totolink.net/)

## Related threats

- [ToToLink Routers stack buffer overflow in cstecgi.cgi](https://junglewise.ai/threats/cve-2025-60688-totolink-routers-stack-buffer-overflow-in-cstecgi-cgi)
- [ToToLink Routers stack overflow in infostat.cgi and cstecgi.cgi](https://junglewise.ai/threats/cve-2025-60686-totolink-routers-stack-overflow-in-infostat-cgi-and-cstecgi-cgi)
- [ToToLink Routers stack buffer overflow in cstecgi.cgi](https://junglewise.ai/threats/cve-2025-60684-totolink-routers-stack-buffer-overflow-in-cstecgi-cgi)