CVE-2026-91001

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

Published: Sep 15, 2026Updated: Sep 15, 2026 Sources: CVE List NVDCWE-119

9.9CRITICAL

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:CScope

Changed

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-119 CWE-121

Affected Products

D-Link

commercial·TW

DI-8400

Networking Infrastructure

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

Privilege Escalation

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References

https://vuldb.com/vuln/403582

vuldb.com

https://vuldb.com/vuln/403582/cti

vuldb.com

https://vuldb.com/cve/CVE-2026-91001

vuldb.com

and 4 more references View all →

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