CVE-2025-6916

| EUVD-2025-19554 HIGH
2025-06-30 [email protected]
8.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Mar 16, 2026 - 01:25 vuln.today
EUVD ID Assigned
Mar 16, 2026 - 01:25 euvd
EUVD-2025-19554
PoC Detected
Jul 07, 2025 - 14:41 vuln.today
Public exploit code
CVE Published
Jun 30, 2025 - 17:15 nvd
HIGH 8.8

Description

A vulnerability, which was classified as critical, was found in TOTOLINK T6 4.1.5cu.748_B20211015. This affects the function Form_Login of the file /formLoginAuth.htm. The manipulation of the argument authCode/goURL leads to missing authentication. The attack needs to be initiated within the local network. The exploit has been disclosed to the public and may be used.

Analysis

A vulnerability, which was classified as critical, was found in TOTOLINK T6 4.1.5cu.748_B20211015. This affects the function Form_Login of the file /formLoginAuth.htm. The manipulation of the argument authCode/goURL leads to missing authentication. The attack needs to be initiated within the local network. The exploit has been disclosed to the public and may be used.

Technical Context

An authentication bypass vulnerability allows attackers to circumvent login mechanisms and gain unauthorized access without valid credentials. This vulnerability is classified as Improper Authentication (CWE-287).

Affected Products

Affected products: Totolink T6 Firmware v4.1.5cu.748_b20211015

Remediation

Implement robust authentication mechanisms. Use multi-factor authentication. Review authentication logic for bypass conditions. Remove default credentials.

Priority Score

64
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +44
POC: +20

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CVE-2025-6916 vulnerability details – vuln.today

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