CVE-2026-30818 PUBLISHED

OS Command Injection Vulnerability in dnsmasq Module in TP-Link AX53

Assigner: TPLink
Reserved: 05.03.2026 Published: 08.04.2026 Updated: 09.04.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
CVSS Score: 8.5

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Adjacent	Confidentiality	High	Confidentiality	Low
Attack Complexity	Low	Integrity	High	Integrity	Low
Attack Requirements	None	Availability	High	Availability	Low
Privileges Required	High
User Interaction	None

CVSS 4.0

Product Status

Vendor	TP-Link Systems Inc.
Product	AX53 v1.0
Versions	Default: unaffected affected from 0 to 1.7.1 Build 20260213 (excl.)

Credits

Lilith >_> of Cisco Talos reporter

References

Problem Types

CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') CWE

Impacts

CAPEC-88 OS Command Injection