CVE-2026-94089
Received Received - Intake

Stack-Based Buffer Overflow in D-Link DIR-868L Authentication Handler

Vulnerability report for CVE-2026-94089, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-20

Last updated on: 2026-09-20

Assigner: VulDB

Description

A vulnerability was determined in D-Link DIR-868L 2.01b05. This issue affects the function strcpy of the file /webfa_authentication.cgi of the component Authentication Handler. Executing a manipulation of the argument id/password can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-09-20
Last Modified
2026-09-20
Generated
2026-09-21
AI Q&A
2026-09-21
EPSS Evaluated
N/A
NVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
d-link dir-868l 2.01b05

Helpful Resources

Exploitability

CWE
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KEV
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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).
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Attack-Flow Graph

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Executive Summary

This vulnerability is a stack-based buffer overflow in D-Link DIR-868L version 2.01b05. It exists in the strcpy function of the file /webfa_authentication.cgi within the Authentication Handler component. An attacker can remotely exploit this by manipulating the id or password arguments, leading to a buffer overflow.

Impact Analysis

This vulnerability allows remote attackers to execute arbitrary code on the affected device. It could lead to unauthorized access, data theft, or device compromise. The high CVSS scores indicate severe impact on confidentiality, integrity, and availability.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating confidentiality requirements in GDPR and HIPAA. Organizations using this device may face compliance violations, data breaches, and potential legal penalties.

Mitigation Strategies

Immediately update the D-Link DIR-868L firmware to the latest version to patch the vulnerability in the authentication handler. If no update is available, consider isolating the device from the network or replacing it with a supported model.

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