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Vulnerability record · CVE-2025-60687 · published 13 November 2025

CVE-2025-60687: Totolink lr1200gb firmware command injection vulnerability

TTotolink · Lr1200gb Firmware

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.

6.5 CVSS 3.1 Medium EPSS 6.6% · top 6.4% CWE-77 · Command injection
6.5CVSS 3.1 base score
6.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
5 Jul 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-LR1200GB/CVE-2025-60687.md ExploitThird Party Advisory
https://www.totolink.net/ Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-1783Totolink lr1200gb firmware stack-based buffer overflow vulnerabilityA vulnerability classified as critical has been found in Totolink LR1200GB 9.1.0u.6619_B20230130/9.3.5u.6698_B20230810. Affected is the function logi…EPSS 2.0%9.8CVE-2024-0578Totolink lr1200gb firmware stack-based buffer overflow vulnerabilityA vulnerability classified as critical has been found in Totolink LR1200GB 9.1.0u.6619_B20230130. Affected is the function UploadCustomModule of the …EPSS 1.1%9.8CVE-2024-0576Totolink lr1200gb firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Totolink LR1200GB 9.1.0u.6619_B20230130. It has been declared as critical. This vulnerability affects the function setIp…EPSS 0.99%9.8CVE-2024-0577Totolink lr1200gb firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Totolink LR1200GB 9.1.0u.6619_B20230130. It has been rated as critical. This issue affects the function setLanguageCfg o…EPSS 0.99%9.8CVE-2024-0574Totolink lr1200gb firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Totolink LR1200GB 9.1.0u.6619_B20230130 and classified as critical. Affected by this issue is the function setParentalRu…EPSS 1.1%9.8CVE-2024-0575Totolink lr1200gb firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Totolink LR1200GB 9.1.0u.6619_B20230130. It has been classified as critical. This affects the function setTracerouteCfg …EPSS 1.1%9.8CVE-2024-0573Totolink lr1200gb firmware stack-based buffer overflow vulnerabilityA vulnerability has been found in Totolink LR1200GB 9.1.0u.6619_B20230130 and classified as critical. Affected by this vulnerability is the function …EPSS 1.1%9.8CVE-2024-0572Totolink lr1200gb firmware stack-based buffer overflow vulnerabilityA vulnerability, which was classified as critical, was found in Totolink LR1200GB 9.1.0u.6619_B20230130. Affected is the function setOpModeCfg of the…EPSS 1.3%

Source: NIST National Vulnerability Database (record CVE-2025-60687), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.