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CVE-2026-4164— Wavlink WL-WN578W2 POST Request wireless.cgi GuestWifi command injection

Quick assessment

Affected
Wavlink WL-WN578W2
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wavlink WL-WN578W2是中国睿因（Wavlink）公司的一款无线中继器。 Wavlink WL-WN578W2 221110版本存在命令注入漏洞，该漏洞源于对文件/cgi-bin/wireless.cgi中函数Delete_Mac_list/SetName/GuestWifi的参数操作不当，可能导致命令注入攻击。

CVSS 9.8 · Critical EPSS 3.57% · P89
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I. Basic Information for CVE-2026-4164

Vulnerability Information
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Vulnerability Title
Wavlink WL-WN578W2 POST Request wireless.cgi GuestWifi command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw has been found in Wavlink WL-WN578W2 221110. Impacted is the function Delete_Mac_list/SetName/GuestWifi of the file /cgi-bin/wireless.cgi of the component POST Request Handler. Executing a manipulation can lead to command injection. It is possible to launch the attack remotely. The exploit has been published and may be used. It is recommended to upgrade the affected component.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Wavlink WL-WN578W2 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wavlink WL-WN578W2是中国睿因（Wavlink）公司的一款无线中继器。 Wavlink WL-WN578W2 221110版本存在命令注入漏洞，该漏洞源于对文件/cgi-bin/wireless.cgi中函数Delete_Mac_list/SetName/GuestWifi的参数操作不当，可能导致命令注入攻击。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Wavlink WL-WN578W2 221110 cpe:2.3:o:wavlink:wl-wn578w2_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-4164

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7715 chars
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III. Intelligence Information for CVE-2026-4164

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Vendor Advisories for CVE-2026-4164 (4)

Proof of Concept for CVE-2026-4164 (1)

Other References for CVE-2026-4164 (1)

Other References for CVE-2026-4164 (1)

IV. Related Vulnerabilities

Same product: WL-WN578W2
Same vendor: Wavlink
Same weakness: CWE-77

V. Comments for CVE-2026-4164

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