CVE-2025-7531 Tenda FH1202 PPTPUserSetting fromPptpUserSetting stack-based overflow
A remote attacker can trigger a stack-based buffer overflow in the Tenda FH1202 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-2025-7531?
CVE-2025-7531 is a high-severity memory corruption vulnerability in Tenda Fh1202 Firmware, published on 13 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability, which was classified as critical, was found in Tenda FH1202 1.2.0.14(408). 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-2025-7531?
It affects 1 product.
Products include Tenda Fh1202 Firmware.
How do I fix CVE-2025-7531?
No fix has been published for CVE-2025-7531 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-2025-7531 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7531 exists.
Other vulnerabilities in Tenda Fh1202 Firmware
Sources
Also known as GHSA-mhcw-3h6x-pvm7.