CVE-2025-63666: Critical severity Tenda Ac15 vulnerability

Published Nov 12, 2025
·
Updated

Tenda AC15 v15.03.05.18multi) issues an authentication cookie that exposes the account password hash to the client and uses a short, low-entropy suffix as the session identifier. An attacker with network access or the ability to run JS in a victim browser can steal the cookie and replay it to access protected resources.

Affected Software

3 affected components
Tenda Ac15
All of the following
Tenda ac15 firmware=15.03.05.18
Tenda Ac15

Event History

Nov 11, 2025
Exploit Published
via GitHub·02:07 PM
Nov 12, 2025
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·03:15 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2025-63666?

CVE-2025-63666 is classified as a high-severity vulnerability due to the potential for account takeover through cookie theft.

2

How do I fix CVE-2025-63666?

To fix CVE-2025-63666, it is recommended to update the Tenda AC15 router to the latest firmware that addresses this vulnerability.

3

What are the implications of CVE-2025-63666?

Exploitation of CVE-2025-63666 can lead to unauthorized access to user accounts and sensitive data through stolen authentication cookies.

4

Who is affected by CVE-2025-63666?

CVE-2025-63666 affects users of the Tenda AC15 router using firmware v15.03.05.18_multi.

5

How does CVE-2025-63666 expose user credentials?

CVE-2025-63666 exposes user credentials by issuing an authentication cookie containing the account password hash, which can be stolen by attackers.

Contact

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