CVE-2025-7862

MEDIUM EPSS 58.2%

Published Jul 20, 202511mo ago · Modified Jun 17, 20261w ago

5.5 CVSS 4.0

Medium

Published Jul 20, 2025 11mo ago

Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score

5.5

Exploitability

—

Impact

—

Vector string

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

58.2% percentile

Exploit & Patch Status

Public Exploit Known

No Patch Available

Weaknesses 2

CWE-287 Improper Authentication Authentication

CWE-306 Missing Authentication for Critical Function Authentication

Affected Products 2

Vendor	Product	Version	Range
totolink	t6_firmware	v4.1.5cu.748_b20211015	any
totolink	t6	3	any

References 7

github.com https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/5.md

ExploitThird Party Advisory
github.com https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/5.md#poc-http

ExploitThird Party Advisory
vuldb.com https://vuldb.com/?ctiid.316975

Permissions Required
vuldb.com https://vuldb.com/?id.316975

Third Party AdvisoryVDB Entry
vuldb.com https://vuldb.com/?submit.617643

Third Party AdvisoryVDB Entry
totolink.net https://www.totolink.net/

Product
youtube.com https://www.youtube.com/watch?v=XeKu3tfeSME

Exploit

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.