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I. Basic Information for CVE-2026-41927
Vulnerability Information
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Vulnerability Title
WDR201A WiFi Extender Stack-Based Buffer Overflow via firewall.cgi
Source: NVD (National Vulnerability Database)
Vulnerability Description
WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains a stack-based buffer overflow vulnerability in the firewall.cgi and makeRequest.cgi binaries that allows unauthenticated attackers to overwrite the saved return address by sending a POST request with a Content-Length header exceeding 512 bytes. Attackers can exploit insufficient length validation in the fgets() call to achieve arbitrary code execution through return-oriented programming or return-to-libc techniques.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
Shenzhen Yipu Commercial and Trading Co., LtdWDR201A WiFi Extender 0 ~ 1.02 -
II. Public POCs for CVE-2026-41927
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III. Intelligence Information for CVE-2026-41927
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IV. Related Vulnerabilities
Same product: WDR201A WiFi Extender
Same vendor: Shenzhen Yipu Commercial and Trading Co., Ltd
Same weakness: CWE-121
V. Comments for CVE-2026-41927

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