CVE-2026-5815: D-Link DIR-645

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

A vulnerability was detected in D-Link DIR-645 1.01/1.02/1.03. Impacted is the function hedwigcgi_main of the file /cgi-bin/hedwig.cgi. The manipulation results in stack-based buffer overflow. The attack can be launched 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-645: version 1.01 only; version 1.02 only; version 1.03 only

Published 2026-04-09. Last modified 2026-07-24.