CVE-2026-19821 PUBLISHED

A vulnerability was determined in Tenda AC12 15.03.06.23_multi_TD01. This vulnerability affects the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd web management interface. This manipulation of the argument rebootTime causes buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

• stksgg (VulDB User) reporter

• VDB-389954 | Tenda AC12 httpd web management interface SetSysAutoRebbotCfg formSetRebootTimer buffer overflow
• VDB-389954 | CTI Indicators (IOB, IOC, IOA)
• CVE-2026-19821 | CVE Analysis and Report
• Submit #868922 | Tenda AC12 US_AC1206V1.0RTL_V15.03.06.23_multi_TD01.bin Buffer Overflow
• https://github.com/lipenghai/iot_bug/blob/main/Tenda/AC12/4.md
• https://www.tenda.com.cn/

• Buffer Overflow CWE
• Memory Corruption CWE