Is CVE-2025-63666 actively exploited?

CVE-2025-63666 has no public evidence of in-the-wild exploitation as of 2025-11-17.

What is the CVSS score for CVE-2025-63666?

CVE-2025-63666 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2025-63666?

Patch guidance is available from tenda security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-63666.

Which products are affected by CVE-2025-63666?

1 product: tenda ac15 firmware.

Fix CVE-2025-63666 - CRITICAL tenda ac15 firmware

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-284

Metadata

Primary Vendor: TENDA
Published: 11/12/2025
Last Modified: 11/17/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-63666

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary