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.
Affected products
totolink: lr1200gb firmware; totolink: lr1200gb
References2
- github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToL… ExploitThird Party Advisory
- www.totolink.net/ Product
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - EPSS — exploit probability
- 7% percentile: 94 · as of 11 November 2026
- CWE
- CWE-77
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