CVE-2025-7912 HIGH

CVE-2025-7912: TOTOLINK T6 MQTT Service recvSlaveUpgstatus buffer overflow

Vendor Totolink
Product T6
Weakness CWE-120
Published July 20, 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, 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.

Key dates

02Disclosure timeline

July 20, 2025 CVE published
July 21, 2025 Record updated