CVE-2023-40042

critical

Description

TOTOLINK T10_v2 5.9c.5061_B20200511 has a stack-based buffer overflow in setStaticDhcpConfig in /lib/cste_modules/lan.so. Attackers can send crafted data in an MQTT packet, via the comment parameter, to control the return address and execute code.

References

https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/172/ids/36.html

https://github.com/Korey0sh1/IoT_vuln/blob/main/TOTOLINK/T10_V2/setStaticDhcpConfig.md

http://www.totolink.cn

Details

Source: Mitre, NVD

Published: 2023-08-08

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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