CVE-2026-30817 Arbitrary File Reading Vulnerability in dnsmasq Module in TP-Link AX53

Medium 6.8 Published 8 Apr 2026 Updated 7 May 2026

An authenticated adjacent attacker can read arbitrary files on TP-Link AX53 routers via a malicious OpenVPN configuration file.

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-2026-30817?

CVE-2026-30817 is a medium-severity path traversal vulnerability in TP-Link Systems Inc. AX53 v1.0, published on 8 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An external configuration control vulnerability in the OpenVPN module of TP-Link AX53 v1.0 allows an authenticated adjacent attacker to read arbitrary files when a malicious configuration file is processed. Successful exploitation may allow unauthorized access to arbitrary files on the device, potentially exposing sensitive information.This issue affects AX53 v1.0: before 1.7.1 Build 20260213.

Weakness: CWE-610, CWE-15

Which versions are affected by CVE-2026-30817?

It affects 1 product.

Products include Tp-Link Archer Ax53 Firmware.

How do I fix CVE-2026-30817?

No fix has been published for CVE-2026-30817 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-30817 being exploited?

There is no known exploitation of CVE-2026-30817 in the wild and no public exploit code.

Sources

Also known as GHSA-wmw7-jpm9-rmff.