CVE-2026-4184: D-Link Dir-816 Firmware

Critical severity, CVSS 9.8. EPSS: 1.9% chance of exploitation in the next 30 days.

A vulnerability was detected in D-Link DIR-816 1.10CNB05. Affected by this vulnerability is an unknown functionality of the file /goform/form2Wl5BasicSetup.cgi of the component goahead. Performing a manipulation of the argument pskValue results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Affected products

• D-Link Dir-816 Firmware: version 1.10cnb05 only

Published 2026-03-16. Last modified 2026-06-17.