CVE-2025-8170 – TOTOLINK MQTT Packet Handler Buffer Overflow Vulnerability

The following table lists the changes that have been made to the
CVE-2025-8170 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Jul. 25, 2025

    Action Type Old Value New Value
    Added Description A vulnerability classified as critical was found in TOTOLINK T6 4.1.5cu.748_B20211015. This vulnerability affects the function tcpcheck_net of the file /router/meshSlaveDlfw of the component MQTT Packet Handler. The manipulation of the argument serverIp leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V2 (AV:N/AC:L/Au:S/C:C/I:C/A:C)
    Added CWE CWE-119
    Added CWE CWE-120
    Added Reference https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/9.md
    Added Reference https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/9.md#poc
    Added Reference https://vuldb.com/?ctiid.317584
    Added Reference https://vuldb.com/?id.317584
    Added Reference https://vuldb.com/?submit.620834
    Added Reference https://www.totolink.net/
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