CVE-2025-11549 Tenda W12 HTTP Request modules wifiMacFilterSet stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the Tenda W12 router's HTTP handler, potentially leading to code execution or service disruption.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-11549?
CVE-2025-11549 is a high-severity memory corruption vulnerability in Tenda W12, published on 9 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been found in Tenda W12 3.0.0.6(3948). The affected element is the function wifiMacFilterSet of the file /goform/modules of the component HTTP Request Handler. The manipulation of the argument mac leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-11549?
It affects 1 product.
Products include Tenda W12 Firmware.
How do I fix CVE-2025-11549?
No fix has been published for CVE-2025-11549 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-11549 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-11549 exists.
Other vulnerabilities in Tenda W12
Sources
Also known as GHSA-4vvc-4999-7hh6.