Vulnerability Report

CVE-2025-63666

Title: Authentication Cookie Disclosure and Replay

Other

Proof Of Concept

PoC Available for CVE-2025-63666

CWE Category CWE-284

Published Date Nov 12, 2025

Modified Date Nov 17, 2025

Exploit Status Available

Score 9.8 CVSS v3.1

Exploit Probability (EPSS)

0.10%

Vulnerability Summary

CVE-2025-63666: 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.

Impacted Vendors

tenda 1

tendacn 1

Reference Links

https://github.com/Remenis/CVE-2025-63666

CVSS v3.1

Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0

Severity CRITICAL

9.8

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-63666 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/Remenis/CVE-2025-63666

View Code

November 17, 2025 MODIFIED

Vulnerability data or affected products updated.

November 17, 2025 MODIFIED

Vulnerability data updated via NVD.

November 12, 2025 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.