ZDI-CAN-19545: ZDI-23-540: D-Link DIR-2640 HNAP PrivateLogin Authentication Bypass Vulnerability
Published May 4, 2023
·Updated
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-2640 routers. Authentication is not required to exploit this vulnerability.
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
Frequently Asked Questions
1
What is the severity of ZDI-CAN-19545?
ZDI-CAN-19545 is classified as a high severity vulnerability due to its potential for authentication bypass.
2
How do I fix ZDI-CAN-19545?
To mitigate ZDI-CAN-19545, update the D-Link DIR-2640 router firmware to the latest version provided by D-Link.
3
Who is affected by ZDI-CAN-19545?
ZDI-CAN-19545 affects users with D-Link DIR-2640 routers that have unpatched firmware.
4
What type of attackers can exploit ZDI-CAN-19545?
Network-adjacent attackers can exploit ZDI-CAN-19545 without requiring authentication.
5
What are the risks associated with ZDI-CAN-19545?
The risks associated with ZDI-CAN-19545 include unauthorized access to the router's functionalities and potential network security breaches.