← Database

CVE-2021-34863

HIGH CVSS: 8.8 Published: 2021-10-25 Modified: 2026-06-17

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 1.01rc001 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the var:page parameter provided to the webproc endpoint. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13271.

Affected Platforms

Dlink Dap-2020 FirmwareDlink Dap-2020

Weakness Type

CWE-121

References