ZDI-CAN-9664: (Pwn2Own) TP-Link Archer A7 SSH Port Forwarding Authentication Bypass Vulnerability

This vulnerability allows remote attackers to bypass authentication on affected installations of TP-Link Archer A7 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of SSH port forwarding requests during initial setup. The issue results from the lack of proper authentication prior to establishing SSH port forwarding rules. An attacker can leverage this vulnerability to escalate privileges to resources normally protected from the WAN interface.

Affected Software

1 affected component
TP-Link Archer A7

Event History

Feb 23, 2026
Advisory Published
via ZDI·06:25 PM
Data Sourced
via ZDI·06:25 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of ZDI-CAN-9664?

The severity of ZDI-CAN-9664 is critical due to its potential for remote authentication bypass.

2

How do I fix ZDI-CAN-9664?

To fix ZDI-CAN-9664, update the TP-Link Archer A7 firmware to the latest version provided by the manufacturer.

3

What devices are affected by ZDI-CAN-9664?

ZDI-CAN-9664 specifically affects TP-Link Archer A7 AC1750 routers.

4

Can ZDI-CAN-9664 be exploited remotely?

Yes, ZDI-CAN-9664 can be exploited remotely without the need for authentication.

5

What is the root cause of ZDI-CAN-9664?

The root cause of ZDI-CAN-9664 is a flaw in the handling of SSH port forwarding requests during the initial connection.

Contact

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