CVE-2025-7837 HIGH

CVE-2025-7837: TOTOLINK T6 MQTT Service recvSlaveStaInfo buffer overflow

Vendor Totolink
Product T6
Weakness CWE-120
Published July 19, 2025
Last update July 21, 2025
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was found in TOTOLINK T6 4.1.5cu.748_B20211015 and classified as critical. Affected by this issue is the function recvSlaveStaInfo of the component MQTT Service. The manipulation of the argument dest leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Key dates

02Disclosure timeline

July 19, 2025 CVE published
July 21, 2025 Record updated