CVE-2026-91001

critical

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.

References

https://www.dlink.com/

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

https://vuldb.com/vuln/403582

https://vuldb.com/submit/931642

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

https://github.com/Vivi-Xray/Xray-s-cve-/tree/main/ddns_asp

https://github.com/Vivi-Xray/Xray-s-cve-/blob/main/ddns_asp/ddns_asp.py

Details

Source: Mitre, NVD

Published: 2026-09-15

Updated: 2026-09-15

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 9.9

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.4

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Severity: Critical

EPSS

EPSS: 0.00484