CVE-2025-63666
Tenda AC15 Authentication Bypass and Session Identification Weakness
Description
Tenda AC15 v15.03.05.18_multi) 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.
INFO
Published Date :
Nov. 12, 2025, 3:15 p.m.
Last Modified :
Nov. 17, 2025, 6:59 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Securely generate and manage session identifiers.
- Avoid transmitting sensitive information in cookies.
- Implement proper session timeout mechanisms.
- Update to a version with improved security.
Public PoC/Exploit Available at Github
CVE-2025-63666 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-63666.
| URL | Resource |
|---|---|
| https://github.com/Remenis/CVE-2025-63666 | Exploit Mitigation Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-63666 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-63666
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Tenda AC15 cookie exposure
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-63666 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-63666 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Nov. 17, 2025
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:o:tenda:ac15_firmware:15.03.05.18:*:*:*:*:*:*:* OR cpe:2.3:h:tenda:ac15:-:*:*:*:*:*:*:* Added Reference Type MITRE: https://github.com/Remenis/CVE-2025-63666 Types: Exploit, Mitigation, Third Party Advisory -
CVE Modified by [email protected]
Nov. 13, 2025
Action Type Old Value New Value Removed Reference http://tenda.com -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Nov. 13, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-284 -
New CVE Received by [email protected]
Nov. 12, 2025
Action Type Old Value New Value Added Description Tenda AC15 v15.03.05.18_multi) 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. Added Reference http://tenda.com Added Reference https://github.com/Remenis/CVE-2025-63666