CVE-2025-69766
CriticalSummary
Tenda AX3 firmware v16.03.12.11 contains a stack-based buffer overflow in the formGetIptv function due to improper handling of the citytag stack buffer, which may result in memory corruption and remote code execution.
Risk Assessment
An attacker can exploit this vulnerability to achieve remote code execution on the router, potentially leading to device takeover and network compromise.
Recommendation
Update the Tenda AX3 router firmware to the latest available version that includes a fix.
Other vulnerabilities in Tenda AX3
See all- CVE-2025-69764Critical
Tenda AX3 firmware v16.03.12.11 contains a stack-based buffer overflow in the formGetIptv function due to improper handling of the stbpvid stack buffer, which may result in memory corruption and remote code execution.
- CVE-2025-69763Critical
Tenda AX3 firmware v16.03.12.11 contains a stack overflow in formSetIptv via the vlanId parameter, which can cause memory corruption and enable remote code execution.
- CVE-2025-69762Critical
Tenda AX3 firmware v16.03.12.11 contains a stack overflow in formSetIptv via the list parameter, which can cause memory corruption and enable remote code execution.
- CVE-2023-40915High
Tenda AX3 v16.03.12.11 has a stack buffer overflow vulnerability detected at function form_fast_setting_wifi_set. This vulnerability allows attackers to cause a Denial of Service (DoS) via the ssid parameter.
Original NVD description (English source)
Tenda AX3 firmware v16.03.12.11 contains a stack-based buffer overflow in the formGetIptv function due to improper handling of the citytag stack buffer, which may result in memory corruption and remote code execution.

