TI-2025-37760 Aliases CVE-2025-60687 GHSA-7cq5-4hvg-2j88

An unauthenticated command injection vulnerability exists in the ToToLink LR1200GB Router…

HIGH 70CWE-77Published 2025-11-13 · Updated 2026-07-05

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

An unauthenticated command injection vulnerability exists in the ToToLink LR1200GB Router firmware V9.1.0u.6619_B20230130 within the cstecgi.cgi binary (sub_41EC68 function). The binary reads the "imei" parameter from a web request and verifies only that it is 15 characters long. The parameter is then directly inserted into a system command using sprintf() and executed with system(). Maliciously crafted IMEI input can execute arbitrary commands on the router without authentication.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.06606 93rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

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

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:totolink:lr1200gb_firmware:9.1.0u.6619_b20230130:::::::*	9.1.0u.6619_b20230130	Vulnerable	TOTOLINK
cpe:2.3:h:totolink:lr1200gb:-:::::::*	not specified by NVD	Running on	TOTOLINK

cpe:2.3:o:totolink:lr1200gb_firmware:9.1.0u.6619_b20230130:*:*:*:*:*:*:* Versions 9.1.0u.6619_b20230130 Vulnerable ·TOTOLINK
cpe:2.3:h:totolink:lr1200gb:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TOTOLINK

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-60687
2026-10-03 Alias added: GHSA-7cq5-4hvg-2j88

References

Exploit 1

https://github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-LR1200GB/CVE-2025-60687.md

Other 1

https://www.totolink.net/

TI-2023-25362 TOTOLINK LR1200GB V9.1.0u.6619_B20230130 was discovered to contain a stack overflow via… CVSS 3.1CRITICAL 9.8
TI-2024-00269 Totolink LR1200GB cstecgi.cgi setUssd os command injection CVSS 3.1CRITICAL 9.8
TI-2024-00536 Totolink LR1200GB cstecgi.cgi UploadCustomModule stack-based overflow CVSS 3.1CRITICAL 9.8
TI-2024-00533 Totolink LR1200GB cstecgi.cgi setTracerouteCfg stack-based overflow CVSS 3.1CRITICAL 9.8
TI-2024-00531 Totolink LR1200GB cstecgi.cgi setDiagnosisCfg stack-based overflow CVSS 3.1CRITICAL 9.8
TI-2024-00268 Totolink LR1200GB cstecgi.cgi setUploadSetting os command injection CVSS 3.1CRITICAL 9.8

See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences