CVE-2025-11386 Tenda AC15 POST Parameter SetDDNSCfg stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the Tenda AC15 router via the SetDDNSCfg endpoint, potentially leading to code execution.
- 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-2025-11386?
CVE-2025-11386 is a high-severity memory corruption vulnerability in Tenda Ac15 Firmware, published on 7 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in Tenda AC15 15.03.05.18. The impacted element is an unknown function of the file /goform/SetDDNSCfg of the component POST Parameter Handler. The manipulation of the argument ddnsEn results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.
Which versions are affected by CVE-2025-11386?
It affects 1 product.
Products include Tenda Ac15 Firmware.
How do I fix CVE-2025-11386?
No fix has been published for CVE-2025-11386 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-2025-11386 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-11386 exists.
Other vulnerabilities in Tenda Ac15 Firmware
Sources
Also known as GHSA-w39m-8ffc-crwg.