High · published December 21, 2025
🚨 A remote attacker can trigger a stack-based buffer overflow in Tenda AC18 with just a crafted argument! This glaring flaw has been spotted in the HTTP Request Handler, and it’s ready for action! ⚡ Think of it like a delivery driver who ignores the weight limit and stuffs too many boxes into the back of the truck — eventually, it’s going to break under pressure! Here, the overflow could lead to catastrophic consequences, allowing attackers to gain control remotely. An attacker could execute their malicious code, potentially corrupting memory, crashing the device, or even taking full control. This could mean disastrous consequences for your home network, opening the door to further attacks and compromising sensitive data.
Think of it like a delivery driver who ignores the weight limit and stuffs too many boxes into the back of the truck — eventually, it’s going to break under pressure! Here, the overflow could lead to catastrophic consequences, allowing attackers to gain control remotely. This vulnerability arises from an unchecked argument in the sprintf function found in the /goform/SetDlnaCfg file. It allows attackers to exploit stack-based buffer overflow, leading to arbitrary code execution without authentication.
An attacker could execute their malicious code, potentially corrupting memory, crashing the device, or even taking full control. This could mean disastrous consequences for your home network, opening the door to further attacks and compromising sensitive data. To protect yourself, patch Tenda AC18 systems to version 15.03.05.06 or later immediately. Additionally, consider disabling remote management if it's not necessary for your use case. Regularly review your network settings and monitor for unusual activity. You've got this! With these steps, you’ll have your Tenda device secured in no time! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| tenda/ac18_firmware | all versions | — |