CVE-2025-7805 Tenda FH451 PPTPUserSetting fromPptpUserSetting stack-based overflow
A remote attacker can trigger a stack-based buffer overflow in the Tenda FH451 router's PPTP user settings, 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-2025-7805?
CVE-2025-7805 is a high-severity memory corruption vulnerability in Tenda FH451, published on 18 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability classified as critical has been found in Tenda FH451 1.0.0.9. This affects the function fromPptpUserSetting of the file /goform/PPTPUserSetting. The manipulation of the argument delno leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-7805?
It affects 1 product.
Products include Tenda Fh451 Firmware.
How do I fix CVE-2025-7805?
No fix has been published for CVE-2025-7805 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-2025-7805 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7805 exists.
Other vulnerabilities in Tenda FH451
Sources
Also known as GHSA-8m7m-95f5-vqg9.