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CVE-2026-41926— WDR201A WiFi Extender OS Command Injection via firewall.cgi

EPSS 0.62% · P70
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I. Basic Information for CVE-2026-41926

Vulnerability Information
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Vulnerability Title
WDR201A WiFi Extender OS Command Injection via firewall.cgi
Source: NVD (National Vulnerability Database)
Vulnerability Description
WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the firewall.cgi binary across five request handlers that apply insufficient input validation. Attackers can inject arbitrary shell commands through vulnerable parameters like websURLFilter, websHostFilter, portForward, singlePortForward, and ipportFilter using subshell syntax or unfiltered parameters, with payloads persisting in NVRAM and re-executing on every subsequent firewall.cgi request.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
Yeapook WDR201A WiFi Extender 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Yeapook WDR201A WiFi Extender是Yeapook公司的一款无线信号扩展设备。 Yeapook WDR201A WiFi Extender HW V2.1版本和FW LFMZX28040922V1.02版本存在操作系统命令注入漏洞，该漏洞源于firewall.cgi二进制文件中五个请求处理程序输入验证不足，可能导致攻击者注入任意shell命令。
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

VendorProductAffected VersionsCPESubscribe
Shenzhen Yipu Commercial and Trading Co., LtdWDR201A WiFi Extender 0 ~ 1.02.0 -

II. Public POCs for CVE-2026-41926

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III. Intelligence Information for CVE-2026-41926

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Same Patch Batch · Shenzhen Yipu Commercial and Trading Co., Ltd · 2026-05-04 · 6 CVEs total

CVE-2026-41924WDR201A WiFi Extender OS Command Injection via makeRequest.cgi
CVE-2026-41925WDR201A WiFi Extender OS Command Injection via adm.cgi (reboot_time)
CVE-2026-41922WDR201A WiFi Extender OS Command Injection via wireless.cgi
CVE-2026-41923WDR201A WiFi Extender OS Command Injection via internet.cgi
CVE-2026-41927WDR201A WiFi Extender Stack-Based Buffer Overflow via firewall.cgi

IV. Related Vulnerabilities

Same product: WDR201A WiFi Extender
Same vendor: Shenzhen Yipu Commercial and Trading Co., Ltd
Same weakness: CWE-78

V. Comments for CVE-2026-41926

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