CVE-2025-9938

HIGH

Dlink Di-8400 Firmware - Out-of-Bounds Write

Title source: rule

Description

A weakness has been identified in D-Link DI-8400 16.07.26A1. The affected element is the function yyxz_dlink_asp of the file /yyxz.asp. This manipulation of the argument ID causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be exploited.

References (6)

[Third Party Advisory, VDB Entry] https://vuldb.com/?id.322340

[Permissions Required, VDB Entry] https://vuldb.com/?ctiid.322340

[Third Party Advisory, VDB Entry] https://vuldb.com/?submit.643446

[Exploit, Third Party Advisory] https://github.com/ZZ2266/.github.io/tree/main/Dlink/DI-8400/yyxz.asp

[Exploit, Third Party Advisory] https://github.com/ZZ2266/.github.io/tree/main/Dlink/DI-8400/yyxz.asp#proof-of-concept-poc

[Product] https://www.dlink.com/

Scores

CVSS v3 8.8

EPSS 0.0029

EPSS Percentile 52.4%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-119 CWE-121 CWE-787

Status published

Products (1)

dlink/di-8400_firmware 16.07.26a1

Published Sep 04, 2025

Tracked Since Feb 18, 2026