VAR-202511-2366
Vulnerability from variot - Updated: 2025-12-20 23:35Tenda AC21 V16.03.08.16 is vulnerable to Buffer Overflow via the list parameter of /goform/setPptpUserList. Shenzhen Tenda Technology Co.,Ltd. of ac21 A stack-based buffer overflow vulnerability exists in the firmware.Service operation interruption (DoS) It may be in a state. The Tenda AC21 is a dual-band gigabit wireless router from Tenda Technology, designed for high-speed home internet needs. It supports 802.11ac wave2 technology, with a dual-band concurrent speed of up to 2033Mbps, including 1733Mbps on the 5GHz band, meeting the demands of high-bandwidth applications such as 4K video and live streaming. This vulnerability stems from the fact that the list parameter in /goform/setPptpUserList fails to properly validate the length of the input data. Attackers can exploit this vulnerability to cause a denial-of-service attack
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