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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.

PUBLISHED Reserved 2026-04-08 | Published 2026-04-08 | Updated 2026-04-13 | Assigner VulDB




HIGH: 8.7CVSS: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
HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Stack-based Buffer Overflow

Memory Corruption

Product status

1.01
affected

1.02
affected

1.03
affected

Timeline

2026-04-08:Advisory disclosed
2026-04-08:VulDB entry created
2026-04-08:VulDB entry last update

Credits

Pers1st (VulDB User) reporter

References

vuldb.com/vuln/356263 (VDB-356263 | D-Link DIR-645 hedwig.cgi hedwigcgi_main stack-based overflow) vdb-entry technical-description

vuldb.com/vuln/356263/cti (VDB-356263 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/788298 (Submit #788298 | D-Link DIR-645 1.01–1.03 Stack-based Buffer Overflow) third-party-advisory

github.com/... exists in the hedwig.cgi of D-Link DIR-645.md related

github.com/... exists in the hedwig.cgi of D-Link DIR-645.md exploit

www.dlink.com/ product

cve.org (CVE-2026-5815)

nvd.nist.gov (CVE-2026-5815)

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