CVE-2025-7862CWE-287CWE-306

TOTOLINK T6 Telnet Service cstecgi.cgi setTelnetCfg missing authentication

Medium · published July 20, 2025

CVSS v4.0
6.9
EPSS
1%
Percentile
68.3
In the wild
Unconfirmed
What it is

A vulnerability has been found in TOTOLINK T6 4.1.5cu.748_B20211015 and classified as critical. Affected by this vulnerability is the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component Telnet Service. The manipulation of the argument telnet_enabled with the input 1 leads to missing authentication. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.01212 · 68.3th percentile
Weaknesses
CWE-287 · Improper Authentication; CWE-306 · Missing Authentication for Critical Function
Published
2025-07-20T02:02Z
EPSS history
Timeline
  • 20 JUL 02:02Z
    TOTOLINK T6 Telnet Service cstecgi.cgi setTelnetCfg missing authentication
    cvelistv5