CVE-2025-3346 Tenda AC7 SetPptpServerCfg formSetPPTPServer buffer overflow
Remote attackers can trigger a buffer overflow in the PPTP server configuration handler of Tenda AC7 routers, potentially leading to arbitrary 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-2025-3346?
CVE-2025-3346 is a high-severity memory corruption vulnerability in Tenda Ac7 Firmware, published on 7 Apr 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 AC7 15.03.06.44. It has been rated as critical. Affected by this issue is the function formSetPPTPServer of the file /goform/SetPptpServerCfg. The manipulation of the argument pptp_server_start_ip/pptp_server_end_ip leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-3346?
It affects 1 product.
Products include Tenda Ac7 Firmware.
How do I fix CVE-2025-3346?
No fix has been published for CVE-2025-3346 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-2025-3346 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-3346 exists.
Other vulnerabilities in Tenda Ac7 Firmware
Sources
Also known as GHSA-2w6r-mvp4-65v2.