CVE-2025-7912CWE-119CWE-120

TOTOLINK T6 MQTT Service recvSlaveUpgstatus buffer overflow

High · published July 20, 2025

CVSS v4.0
8.7
EPSS
1%
Percentile
69.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
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
EPSS
0.01281 · 69.8th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2025-07-20T23:02Z
EPSS history
Timeline
  • 20 JUL 23:02Z
    TOTOLINK T6 MQTT Service recvSlaveUpgstatus buffer overflow
    cvelistv5