CVE-2020-15896: D-Link Dap-1522 Firmware

High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days.

An authentication-bypass issue was discovered on D-Link DAP-1522 devices 1.4x before 1.10b04Beta02. There exist a few pages that are directly accessible by any unauthorized user, e.g., logout.php and login.php. This occurs because of checking the value of NO_NEED_AUTH. If the value of NO_NEED_AUTH is 1, the user has direct access to the webpage without any authentication. By appending a query string NO_NEED_AUTH with the value of 1 to any protected URL, any unauthorized user can access the application directly, as demonstrated by bsc_lan.php?NO_NEED_AUTH=1.

Affected products

• D-Link Dap-1522 Firmware: version 1.41 only; version 1.42 only

Published 2020-07-22. Last modified 2026-06-17.