Critical · published October 8, 2025
🚨 A remote stack-based buffer overflow is lurking in Tenda CH22 up to version 1.0.0.1, and it’s just waiting for the right moment to strike! 🔥 Think of the `formWrlsafeset` function like a fragile piece of machinery in a factory; if one small part is overstuffed, it could cause the entire system to jam, potentially letting unwanted visitors into your factory floor through the back door. An attacker could exploit this vulnerability to execute arbitrary code on the device, leading to complete control over your network. This could result in data theft, unauthorized access to sensitive information, or even turning your device into a launchpad for further attacks! Absolutely devastating!
Think of the `formWrlsafeset` function like a fragile piece of machinery in a factory; if one small part is overstuffed, it could cause the entire system to jam, potentially letting unwanted visitors into your factory floor through the back door. The vulnerability arises from improper handling of the `mit_ssid_index` argument in the HTTP Request Handler, allowing for a stack-based buffer overflow that can be exploited remotely without authentication.
An attacker could exploit this vulnerability to execute arbitrary code on the device, leading to complete control over your network. This could result in data theft, unauthorized access to sensitive information, or even turning your device into a launchpad for further attacks! Absolutely devastating! Patch to the latest version immediately to close this security hole. Implement a robust input validation mechanism to ensure argument sizes are correctly handled. Regularly review your network device configurations to maintain security best practices. You've got this! With these actions, you'll ensure your network remains secure and protected. 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| tenda/ch22_firmware | ≤ 1.0.0.1 | — |