CVE-2025-11527 Tenda AC7 fast_setting_pppoe_set stack-based overflow
A remote attacker can trigger a stack-based buffer overflow in the Tenda AC7 router via the PPPoE password field, 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-2025-11527?
CVE-2025-11527 is a high-severity memory corruption vulnerability in Tenda Ac7 Firmware, published on 9 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was determined in Tenda AC7 15.03.06.44. The impacted element is an unknown function of the file /goform/fast_setting_pppoe_set. Executing a manipulation of the argument Password can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
Which versions are affected by CVE-2025-11527?
It affects 1 product.
Products include Tenda Ac7 Firmware.
How do I fix CVE-2025-11527?
No fix has been published for CVE-2025-11527 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-2025-11527 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-11527 exists.
Other vulnerabilities in Tenda Ac7 Firmware
Sources
Also known as GHSA-hw42-h3c4-83pw.