CVE-2026-5815

HIGH

D-Link DIR-645 hedwig.cgi hedwigcgi_main stack-based overflow

Title source: cna

Description

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.

References (6)

Core 6

Core References

Exploit exploit

https://github.com/Pers1st0/CVE/blob/main/stack-based%20buffer%20overflow%20vulnerability%20exists%20in%20the%20hedwig.cgi%20of%20D-Link%20DIR-645.md#poc

View Exploit ZIP pw:eip

Product product

https://www.dlink.com/

Vdb Entry, Technical Description vdb-entry technical-description

VDB-356263 | D-Link DIR-645 hedwig.cgi hedwigcgi_main stack-based overflow

https://vuldb.com/vuln/356263

Signature, Permissions Required signature permissions-required

VDB-356263 | CTI Indicators (IOB, IOC, IOA)

https://vuldb.com/vuln/356263/cti

Third Party Advisory third-party-advisory

Submit #788298 | D-Link DIR-645 1.01–1.03 Stack-based Buffer Overflow

https://vuldb.com/submit/788298

Related related

https://github.com/Pers1st0/CVE/blob/main/stack-based%20buffer%20overflow%20vulnerability%20exists%20in%20the%20hedwig.cgi%20of%20D-Link%20DIR-645.md

View Writeup ZIP pw:eip

Scores

CVSS v3 8.8

EPSS 0.0050

EPSS Percentile 38.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-119 CWE-121

Status published

Products (3)

D-Link/DIR-645 1.01

D-Link/DIR-645 1.02

D-Link/DIR-645 1.03

Published Apr 09, 2026

Tracked Since Apr 09, 2026