CVE-2025-6139: TOTOLINK T10 shadow.sample hard-coded password

Published Jun 16, 2025
·
Updated

A vulnerability, which was classified as problematic, has been found in TOTOLINK T10 4.1.8cu.5207. Affected by this issue is some unknown functionality of the file /etc/shadow.sample. The manipulation leads to use of hard-coded password. The attack can only be initiated within the local network. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used.

Affected Software

3 affected components
TOTOLINK T10
All of the following
TOTOLINK T10 Firmware=4.1.8cu.5207_b20210320
TOTOLINK T10=2.0

Event History

Jun 16, 2025
CVE Published
via MITRE·09:00 PM
Data Sourced
via MITRE·09:00 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·09:15 PM
DescriptionSeverityWeaknessAffected Software
Aug 30, 57482
Event
via FIRST·03:18 PM

Frequently Asked Questions

1

What is the severity of CVE-2025-6139?

CVE-2025-6139 has been classified as a problematic vulnerability.

2

How do I fix CVE-2025-6139?

To fix CVE-2025-6139, it is recommended to update the TOTOLINK T10 firmware to the latest version.

3

What components are affected by CVE-2025-6139?

CVE-2025-6139 affects the /etc/shadow.sample file functionality on the TOTOLINK T10 device.

4

What type of attack is possible with CVE-2025-6139?

The vulnerability allows an attacker to exploit a hard-coded password under specific conditions.

5

Is remote access required to exploit CVE-2025-6139?

No, exploitation of CVE-2025-6139 can only be initiated within the local host.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203