CVE-2026-5815 HIGH

CVE-2026-5815: D-Link DIR-645 hedwig.cgi hedwigcgi_main stack-based overflow

Vendor D-Link
Product DIR-645
Weakness CWE-121
Published April 8, 2026
Last update April 13, 2026
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 8, 2026 CVE published
April 13, 2026 Record updated