CVE-2025-63666 Information disclosure in n/a
An attacker can steal authentication cookies containing password hashes and session IDs to access protected resources on the Tenda AC15 router.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-63666?
CVE-2025-63666 is a critical vulnerability in Tenda Ac15 Firmware, published on 12 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-284
Which versions are affected by CVE-2025-63666?
It affects 1 product.
Products include Tenda Ac15 Firmware.
How do I fix CVE-2025-63666?
No fix has been published for CVE-2025-63666 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-63666 being exploited?
There is no known exploitation of CVE-2025-63666 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Tenda Ac15 Firmware
Sources
Also known as GHSA-qrpj-fx7w-27q9.