CVE-2026-30818

What it is

An OS command injection vulnerability in the dnsmasq module of TP-Link Archer AX53 v1.0 allows an authenticated adjacent attacker to execute arbitrary code when a specially crafted configuration file is processed due to insufficient input validation. Successful exploitation may allow the attacker to modify device configuration, access sensitive information, or further compromise system integrity. This issue affects AX53 v1.0: before 1.7.1 Build 20260213.

At a glance

Exploitability

Can be exploited from the same network segment with an admin-level account. High risk of data exposure, data tampering, service disruption.

Exploit odds

1.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-04-08 19:25 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-07-25 11:10 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.3% in the next 30 days (EPSS).
• Severity: 8.5 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2026-04-08 19:25 UTC

Last modified

2026-07-25 11:10 UTC

Exploit probability

1.3% · EPSS, next 30 days

Weakness

CWE-78 · OS command injection

Record status

Modified

Affected

• TP-Link Archer ax53 Firmware < 1.7.1

Attack profile CVSS 4.0 · 8.5

Attack vector

Adjacent network

Complexity

Low

Attack requirements

None

Privileges needed

High

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-30818.md and follow it. Check whether this project is affected by CVE-2026-30818. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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