The vulnerability of the addAuthUser function (goform/formAddWebAuthUse) in the Tenda W20E router software allows a hacker to execute arbitrary commands.

The vulnerability of the addAuthUser function goform/formAddWebAuthUse in the Tenda W20E router microprogramming system lies in the fact that the operation’s output escapes the buffer and is stored in the userInfo parameter’s memory. Exploiting this vulnerability allows a remote attacker to execu...

CVE-2026-24111

CVE-2026-24111 affects the Tenda W20E router (v4.0br_V15.11.0.6). The issue arises when the value of the parameter userInfo is passed to the function addAuthUser and handled by a call to sscanf without proper size validation, which can lead to a buffer overflow . The public descriptions consisten...

PT-2026-22601

Name of the Vulnerable Software and Affected Versions Tenda W20E version 4.0br V15.11.0.6 Description An issue exists in Tenda W20E firmware where improper input validation can lead to a buffer overflow. Attackers can exploit this by manipulating the userInfo variable. Specifically, when the...