CVE-2026-5511 Information Disclosure via Diagnostic Interface Due to Improper Input Validation on TP-Link's Archer AX72

Medium 4.6 Published Updated

An authenticated admin can view diagnostic command syntax via improper input validation in the web interface, exposing limited usage information.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-5511?

CVE-2026-5511 is a medium-severity vulnerability in TP-Link Systems Inc. Archer AX72 (SG) v1.0, published on 19 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the web management interface of Archer AX72 (SG) v1, the network diagnostic feature improperly handles invalid user input, resulting in limited exposure of diagnostic command usage information. 

An authenticated attacker with administrative privileges could exploit this issue to confirm the presence of the diagnostic utility and view its valid command-line syntax and options.  The exposed information is limited in scope and does not include sensitive system data.

Weakness: CWE-209

Which versions are affected by CVE-2026-5511?

It affects 1 product.

Products include Tp-Link Archer Ax72 Firmware.

How do I fix CVE-2026-5511?

No fix has been published for CVE-2026-5511 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-5511 being exploited?

There is no known exploitation of CVE-2026-5511 in the wild and no public exploit code.

Sources

Also known as GHSA-wcm6-86h3-r2cq.

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