CVE-2025-27129 Auth bypass in AC6 V5.0
An attacker can bypass HTTP authentication on Tenda AC6 routers to achieve arbitrary code execution via crafted requests.
- 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-2025-27129?
CVE-2025-27129 is a critical authentication bypass vulnerability in Tenda Ac6 Firmware, published on 20 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An authentication bypass vulnerability exists in the HTTP authentication functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can send packets to trigger this vulnerability.
Weakness: CWE-288
Which versions are affected by CVE-2025-27129?
It affects 1 product.
Products include Tenda Ac6 Firmware.
How do I fix CVE-2025-27129?
No fix has been published for CVE-2025-27129 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-27129 being exploited?
There is no known exploitation of CVE-2025-27129 in the wild and no public exploit code.
Other vulnerabilities in Tenda Ac6 Firmware
Sources
Also known as GHSA-ph9v-qvxr-mh9x.