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CVE-2026-91001

D-Link DI-8400 DDNS Configuration ddns.asp ddns_asp stack-based overflow

CVSS 4.0 9.4 CRITICALCVSS 3.1 9.9 CRITICALCVSS 3.0 9.9 CRITICALCVSS 2.0 9.0 Check source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-91001

Published

A security flaw has been discovered in D-Link DI-8400 16.07. This affects the function ddns_asp of the file /ddns.asp of the component DDNS Configuration. Performing a manipulation of the argument serv/user/host/wild/mx/bmx/cust/ip results in stack-based buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-91001

Published

DI-8400

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "D-Link",
                    "product": "DI-8400",
                    "versions": [
                        {
                            "version": "16.07",
                            "status": "affected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:h:d-link:di-8400:*:*:*:*:*:*:*:*"
                    ],
                    "modules": [
                        "DDNS Configuration"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON