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CVE-2026-6483— Wavlink WL-WN530H4 internet.cgi snprintf os command injection

Quick assessment

Affected
Wavlink WL-WN530H4
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WAVLINK WL-WN530H4是中国睿因（WAVLINK）公司的一款高性能USB无线网卡，支持802.11ac双频Wi-Fi。 Wavlink WL-WN530H4 20220721版本存在安全漏洞，该漏洞源于文件/cgi-bin/internet.cgi中函数strcat/snprintf存在os命令注入，可能导致远程攻击。

CVSS 7.2 · High EPSS 13.37% · P96

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-6483

Vulnerability Information
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Vulnerability Title
Wavlink WL-WN530H4 internet.cgi snprintf os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Wavlink WL-WN530H4 20220721. This vulnerability affects the function strcat/snprintf of the file /cgi-bin/internet.cgi. The manipulation results in os command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2026.04.16 is able to resolve this issue. Upgrading the affected component is recommended.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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
WAVLINK WL-WN530H4 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WAVLINK WL-WN530H4是中国睿因（WAVLINK）公司的一款高性能USB无线网卡，支持802.11ac双频Wi-Fi。 Wavlink WL-WN530H4 20220721版本存在安全漏洞，该漏洞源于文件/cgi-bin/internet.cgi中函数strcat/snprintf存在os命令注入，可能导致远程攻击。
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
Wavlink WL-WN530H4 20220721 cpe:2.3:o:wavlink:wl-wn530h4_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-6483

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III. Intelligence Information for CVE-2026-6483

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Vendor Advisories for CVE-2026-6483 (1)

Proof of Concept for CVE-2026-6483 (1)

Other References for CVE-2026-6483 (1)

IV. Related Vulnerabilities

Same vendor: Wavlink
Same weakness: CWE-78