CVE-2021-46456: D-Link Dir-823 Pro Firmware

Critical severity, CVSS 9.8. EPSS: 3.7% chance of exploitation in the next 30 days.

D-Link device D-Link DIR-823-Pro v1.0.2 was discovered to contain a command injection vulnerability in the function SetWLanACLSettings. This vulnerability allows attackers to execute arbitrary commands via the wl(0).(0)_maclist parameter.

Affected products

• D-Link Dir-823 Pro Firmware: up to and including 1.0.2

Published 2022-02-04. Last modified 2026-06-17.