ZDI-CAN-19547: ZDI-23-542: D-Link DIR-2640 PrefixLen Command Injection Remote Code Execution Vulnerability

Published May 4, 2023
·
Updated

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-2640 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.

Affected Software

1 affected component
D-Link DIR-2640

Event History

May 4, 2023
Advisory Published
05:00 AM
Data Sourced
05:00 AM
Description
Feb 21, 2025
Advisory Published
via ZDI·07:27 PM
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Frequently Asked Questions

1

What is the severity of ZDI-CAN-19547?

The severity of ZDI-CAN-19547 is high due to the potential for arbitrary code execution.

2

How do I fix ZDI-CAN-19547?

To fix ZDI-CAN-19547, you should update the D-Link DIR-2640 firmware to the latest version provided by the manufacturer.

3

Who is affected by ZDI-CAN-19547?

The D-Link DIR-2640 router users with outdated firmware are affected by ZDI-CAN-19547.

4

Can ZDI-CAN-19547 be exploited remotely?

ZDI-CAN-19547 requires network-adjacent access to exploit, indicating it cannot be exploited remotely without local network presence.

5

What are the implications of ZDI-CAN-19547?

The implications of ZDI-CAN-19547 include potential unauthorized access and control of the affected router.

Contact

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