Buffer Overflow in D-Link DI-8003 /user.asp Causes Potential Crash

Publication date: 2026-04-08

Last updated on: 2026-04-22

Assigner: MITRE

Description

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of the custom_error parameter in the /user.asp endpoint.

CVSS Scores

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Meta Information

Published

2026-04-08

Last Modified

2026-04-22

Generated

2026-07-06

AI Q&A

2026-04-08

EPSS Evaluated

2026-07-05

NVD

CVE-2025-50659

EUVD

EUVD-2025-209341

Affected Vendors & Products

Vendor	Product	Version / Range
dlink	di-8003_firmware	16.07.26a1

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
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).

Attack-Flow Graph

Impact Analysis

A buffer overflow vulnerability can potentially allow an attacker to execute arbitrary code, cause a denial of service, or crash the affected device. In this case, exploiting the improper handling of the custom_error parameter could lead to such impacts on the D-Link DI-8003 device.

Executive Summary

This vulnerability is a buffer overflow issue found in the D-Link DI-8003 device, specifically in version 16.07.26A1. It occurs because the device improperly handles the custom_error parameter in the /user.asp endpoint.

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