CVE-2025-60684

A stack buffer overflow vulnerability exists in the ToToLink LR1200GB (V9.1.0u.6619_B20230130) and NR1800X (V9.1.0u.6681_B20230703) Router firmware within the cstecgi.cgi binary (sub_42F32C function). The web interface reads the "lang" parameter and constructs Help URL strings using sprintf() into fixed-size stack buffers without proper length validation. Maliciously crafted input can overflow these buffers, potentially leading to arbitrary code execution or memory corruption, without requiring authentication.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
mitreCNA
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CISA-ADPADP
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 67%
VendorProductVersion
totolinklr1200gb_firmware
9.1.0u.6619_b20230130:u.6619_b20230130
totolinknr1800x_firmware
9.1.0u.6681_b20230703:u.6681_b20230703
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
http://totolink.com
https://github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-LR1200GB/CVE-2025-60684.md
https://www.totolink.net/