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CVE-2026-30818— OS Command Injection Vulnerability in dnsmasq Module in TP-Link AX53

Quick assessment

Affected
TP-Link Systems Inc. AX53 v1.0
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TP-Link Archer AX53是中国普联（TP-Link）公司的一款双拼路由器。 TP-Link Archer AX53 v1.0 1.7.1 Build 20260213之前版本存在安全漏洞，该漏洞源于dnsmasq模块输入验证不足，可能导致经过身份验证的邻近攻击者在处理特制配置文件时执行任意代码。

AI Predicted 6.5 Difficulty: Easy EPSS 1.85% · P78

Affected Version Matrix 1

VendorProduct Version RangeStatus
TP-Link Systems Inc. AX53 v1.0 < 1.7.1 Build 20260213 affected
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I. Basic Information for CVE-2026-30818

Vulnerability Information
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Vulnerability Title
OS Command Injection Vulnerability in dnsmasq Module in TP-Link AX53
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
TP-Link Archer AX53 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-Link Archer AX53是中国普联（TP-Link）公司的一款双拼路由器。 TP-Link Archer AX53 v1.0 1.7.1 Build 20260213之前版本存在安全漏洞，该漏洞源于dnsmasq模块输入验证不足，可能导致经过身份验证的邻近攻击者在处理特制配置文件时执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TP-Link Systems Inc. AX53 v1.0 0 ~ 1.7.1 Build 20260213 -

II. Public POCs for CVE-2026-30818

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III. Intelligence Information for CVE-2026-30818

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Vendor Advisories for CVE-2026-30818 (1)

Same Patch Batch · TP-Link Systems Inc. · 2026-04-08 · 5 CVEs total

CVE-2026-30816 Arbitrary File Reading Vulnerability in OpenVPN Module in TP-Link AX53
CVE-2026-30815 OS Command Injection Vulnerability in OpenVPN Module in TP-Link AX53
CVE-2026-30817 Arbitrary File Reading Vulnerability in dnsmasq Module in TP-Link AX53
CVE-2026-30814 Buffer Overflow Vulnerability in TP-Link AX53

IV. Related Vulnerabilities

Same product: AX53 v1.0
Same vendor: TP-Link Systems Inc.
Same weakness: CWE-78

V. Comments for CVE-2026-30818

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