Skip to main content

WDR201A WiFi Extender EUVD-2026-27117

| CVE-2026-41922 CRITICAL
OS Command Injection (CWE-78)
2026-05-04 VulnCheck
9.3
CVSS 4.0
Share

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
Analysis Generated
May 04, 2026 - 22:15 vuln.today
CVSS changed
May 04, 2026 - 20:22 NVD
9.3 (CRITICAL)

DescriptionNVD

WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the wireless.cgi binary that allow unauthenticated remote attackers to execute arbitrary shell commands by injecting malicious input into the sz11gChannel or PIN POST parameters. Attackers can exploit unsanitized parameter handling in the set_wifi_basic and set_wifi_do_wps functions to achieve remote code execution without authentication.

AnalysisAI

Remote code execution in WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) allows unauthenticated network attackers to execute arbitrary shell commands via OS command injection in the wireless.cgi binary. Attackers exploit unsanitized sz11gChannel or PIN POST parameters in set_wifi_basic and set_wifi_do_wps functions to achieve root-level code execution without authentication. …

Sign in for full analysis, threat intelligence, and remediation guidance.

RemediationAI

Within 24 hours: Inventory all WDR201A devices in your environment and isolate affected units from production networks if firmware update is unavailable. Within 7 days: Contact the device manufacturer for emergency firmware patch status and timeline; if no patch is available, implement network segmentation to restrict access to the extender's management interface (port 80/443) to trusted administrative systems only. …

Sign in for detailed remediation steps.

Share

EUVD-2026-27117 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy