High · published December 14, 2025
🚨 A sneaky stack-based buffer overflow hides in the function formSetPPTPUserList of Tenda AC20's firmware! 🔥 Think of it like a traffic jam on a narrow road—if too many cars pile up, it can block the whole intersection. Similarly, this vulnerability can cause the system to crash or behave unexpectedly when overloaded with improper input. If exploited, an attacker could execute arbitrary code remotely, potentially gaining control over your device and accessing sensitive information. This could lead to unauthorized access to your network, making it a serious concern for users relying on the Tenda AC20 for secure internet connectivity.
Think of it like a traffic jam on a narrow road—if too many cars pile up, it can block the whole intersection. Similarly, this vulnerability can cause the system to crash or behave unexpectedly when overloaded with improper input. The vulnerability allows a remote attacker to manipulate the argument list in the function formSetPPTPUserList, leading to a stack-based buffer overflow. This can be exploited to execute arbitrary code on the affected device.
If exploited, an attacker could execute arbitrary code remotely, potentially gaining control over your device and accessing sensitive information. This could lead to unauthorized access to your network, making it a serious concern for users relying on the Tenda AC20 for secure internet connectivity. Update the Tenda AC20 firmware to the latest version immediately to mitigate this risk. Ensure you regularly check for firmware updates to keep your device secure. Additionally, consider implementing network segmentation to limit potential exposure. You've got this! Secure your device now and reclaim your peace of mind! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| tenda/ac20_firmware | all versions | — |