D-Link DI-8400 16.07 DDNS Configuration /ddns.asp ddns_asp serv/user/host/wild/mx/bmx/cust/ip stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.0$0-$5k1.05+

Summaryinfo

A vulnerability was found in D-Link DI-8400 16.07 and classified as very critical. This vulnerability affects the function ddns_asp of the file /ddns.asp of the component DDNS Configuration. Executing a manipulation of the argument serv/user/host/wild/mx/bmx/cust/ip can lead to stack-based overflow. This vulnerability is tracked as CVE-2026-91001. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability has been found in D-Link DI-8400 16.07 and classified as very critical. This vulnerability affects the function ddns_asp of the file /ddns.asp of the component DDNS Configuration. The manipulation of the argument serv/user/host/wild/mx/bmx/cust/ip with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability was named CVE-2026-91001. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/14/2026).

It is possible to download the exploit at github.com. It is declared as proof-of-concept. By approaching the search of inurl:ddns.asp it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.0

VulDB Base Score: 9.9
VulDB Temp Score: 9.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Programming Language: 🔒
Download: 🔒
Google Hack: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/14/2026 Advisory disclosed
09/14/2026 +0 days VulDB entry created
09/14/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: dlink.com

Advisory: github.com
Status: Not defined

CVE: CVE-2026-91001 (🔒)
GCVE (CVE): GCVE-0-2026-91001
GCVE (VulDB): GCVE-100-403582
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/14/2026 17:40
Changes: 09/14/2026 17:40 (57)
Complete: 🔍
Submitter: Xray
Cache ID: 216::103

Submitinfo

Accepted

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