CVE-2026-4182

CRITICAL

D-Link DIR-816 goahead form2Wl5RepeaterStep2.cgi stack-based overflow

Title source: cna
STIX 2.1

Description

A weakness has been identified in D-Link DIR-816 1.10CNB05. This impacts an unknown function of the file /goform/form2Wl5RepeaterStep2.cgi of the component goahead. This manipulation of the argument key1/key2/key3/key4/pskValue causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-351086 | D-Link DIR-816 goahead form2Wl5RepeaterStep2.cgi stack-based overflow
https://vuldb.com/?id.351086
Signature, Permissions Required signature permissions-required
VDB-351086 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/?ctiid.351086
Third Party Advisory third-party-advisory
Submit #769830 | D-Link DIR816 1.10CNB05 Stack-based Buffer Overflow
https://vuldb.com/?submit.769830
Product product
https://www.dlink.com/

Scores

CVSS v3 9.8
EPSS 0.0108
EPSS Percentile 60.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-119 CWE-787 CWE-121
Status published
Products (2)
D-Link/DIR-816 1.10CNB05
dlink/dir-816_firmware 1.10cnb05
Published Mar 16, 2026
Tracked Since Mar 16, 2026