Is CVE-2026-30818 actively exploited?

No active exploitation of CVE-2026-30818 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-30818 be exploited remotely?

Partially. CVE-2026-30818 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-30818?

CVE-2026-30818 has a CVSS score of 8.0 (HIGH).

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HIGH

CVE-2026-30818

CWE-78Published: April 8, 2026· Updated: Apr 14, 2026

8.0

CVSS v3.1

EPSS:0.42%probability of exploitation in 30 daysPercentile:61.9th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-30818 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.0.