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CWE

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CVE-2025-7912

Published: Jul 20, 2025

Modified: Jul 21, 2025

PUBLISHED

CVSS v3.1

8.8

HIGH

Description

A vulnerability, which was classified as critical, has been found in TOTOLINK T6 4.1.5cu.748_B20211015. This issue affects the function recvSlaveUpgstatus of the component MQTT Service. The manipulation of the argument s leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Vendor	Product	Versions
TOTOLINK	T6	affected `4.1.5cu.748_B20211015`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

VDB-317027 | TOTOLINK T6 MQTT Service recvSlaveUpgstatus buffer overflow

vdb-entry

technical-description

VDB-317027 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #618655 | TOTOLINK T6 V4.1.5cu.748_B20211015 Buffer Overflow

third-party-advisory

https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/6.md

related

https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/6.md#poc

exploit

https://www.totolink.net/

product

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