CVE-2026-4975 Tenda AC15 POST Request setcfm formSetCfm memory corruption
Remote attackers can trigger a stack-based buffer overflow in the Tenda AC15 router via a crafted POST request, potentially leading to code execution or denial of service.
- 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-2026-4975?
CVE-2026-4975 is a high-severity memory corruption vulnerability in Tenda Ac15 Firmware, published on 27 Mar 2026. 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 AC15 15.03.05.19. This affects the function formSetCfm of the file /goform/setcfm of the component POST Request Handler. The manipulation of the argument funcpara1 leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2026-4975?
It affects 1 product.
Products include Tenda Ac15 Firmware.
How do I fix CVE-2026-4975?
No fix has been published for CVE-2026-4975 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-2026-4975 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4975 exists.
Other vulnerabilities in Tenda Ac15 Firmware
Sources
Also known as GHSA-w366-ww4p-hrpq.